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Finding the Fourth Proportional to 62,573.92, 86,355.12 and 38,713

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Solution

The fourth proportional to 62,573.92, 86,355.12 and 38,713 is: 53,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,573.92 : 86,355.12 = 38,713 : x
  2. Step 2: Convert to fraction form
    62,573.92/86,355.12 = 38,713/x
  3. Step 3: Cross multiply
    62,573.92x = 86,355.12 × 38,713
  4. Step 4: Simplify right side
    62,573.92x = 3,343,065,760.56
  5. Step 5: Solve for x
    x = 3,343,065,760.56/62,573.92
  6. Step 6: Final answer
    x = 53,425.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.