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Finding the Fourth Proportional to 62,640.88, 86,443.68 and 34,346.32

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Solution

The fourth proportional to 62,640.88, 86,443.68 and 34,346.32 is: 47,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,640.88 : 86,443.68 = 34,346.32 : x
  2. Step 2: Convert to fraction form
    62,640.88/86,443.68 = 34,346.32/x
  3. Step 3: Cross multiply
    62,640.88x = 86,443.68 × 34,346.32
  4. Step 4: Simplify right side
    62,640.88x = 2,969,022,295.26
  5. Step 5: Solve for x
    x = 2,969,022,295.26/62,640.88
  6. Step 6: Final answer
    x = 47,397.52

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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.