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Finding the Fourth Proportional to 19,597.78, 29,401.08 and 6,449.68

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Solution

The fourth proportional to 19,597.78, 29,401.08 and 6,449.68 is: 9,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,597.78 : 29,401.08 = 6,449.68 : x
  2. Step 2: Convert to fraction form
    19,597.78/29,401.08 = 6,449.68/x
  3. Step 3: Cross multiply
    19,597.78x = 29,401.08 × 6,449.68
  4. Step 4: Simplify right side
    19,597.78x = 189,627,557.65
  5. Step 5: Solve for x
    x = 189,627,557.65/19,597.78
  6. Step 6: Final answer
    x = 9,675.97

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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.