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Finding the Fourth Proportional to 71,598.78, 98,760.92 and 43,991.34

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Solution

The fourth proportional to 71,598.78, 98,760.92 and 43,991.34 is: 60,680.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,598.78 : 98,760.92 = 43,991.34 : x
  2. Step 2: Convert to fraction form
    71,598.78/98,760.92 = 43,991.34/x
  3. Step 3: Cross multiply
    71,598.78x = 98,760.92 × 43,991.34
  4. Step 4: Simplify right side
    71,598.78x = 4,344,625,210.43
  5. Step 5: Solve for x
    x = 4,344,625,210.43/71,598.78
  6. Step 6: Final answer
    x = 60,680.16

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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.