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Finding the Fourth Proportional to 71,566.73, 98,765.17 and 39,735.63

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Solution

The fourth proportional to 71,566.73, 98,765.17 and 39,735.63 is: 54,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,566.73 : 98,765.17 = 39,735.63 : x
  2. Step 2: Convert to fraction form
    71,566.73/98,765.17 = 39,735.63/x
  3. Step 3: Cross multiply
    71,566.73x = 98,765.17 × 39,735.63
  4. Step 4: Simplify right side
    71,566.73x = 3,924,496,252.01
  5. Step 5: Solve for x
    x = 3,924,496,252.01/71,566.73
  6. Step 6: Final answer
    x = 54,836.88

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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.