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Finding the Fourth Proportional to 13,306,518.95, 19,959,778.43 and 13,306,518.95

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Solution

The fourth proportional to 13,306,518.95, 19,959,778.43 and 13,306,518.95 is: 19,959,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,518.95 : 19,959,778.43 = 13,306,518.95 : x
  2. Step 2: Convert to fraction form
    13,306,518.95/19,959,778.43 = 13,306,518.95/x
  3. Step 3: Cross multiply
    13,306,518.95x = 19,959,778.43 × 13,306,518.95
  4. Step 4: Simplify right side
    13,306,518.95x = 265,595,169,916,596.22
  5. Step 5: Solve for x
    x = 265,595,169,916,596.22/13,306,518.95
  6. Step 6: Final answer
    x = 19,959,778.43

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Similar ratio
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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.