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Finding the Fourth Proportional to 19,788,331,401.30, 29,682,497,101.95 and 19,788,331,401.30

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Solution

The fourth proportional to 19,788,331,401.30, 29,682,497,101.95 and 19,788,331,401.30 is: 29,682,497,101.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788,331,401.30 : 29,682,497,101.95 = 19,788,331,401.30 : x
  2. Step 2: Convert to fraction form
    19,788,331,401.30/29,682,497,101.95 = 19,788,331,401.30/x
  3. Step 3: Cross multiply
    19,788,331,401.30x = 29,682,497,101.95 × 19,788,331,401.30
  4. Step 4: Simplify right side
    19,788,331,401.30x = 587,367,089,471,513,427,968
  5. Step 5: Solve for x
    x = 587,367,089,471,513,427,968/19,788,331,401.30
  6. Step 6: Final answer
    x = 29,682,497,101.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.