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Finding the Fourth Proportional to 71,304.98, 98,401.65 and 39,474.44

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Solution

The fourth proportional to 71,304.98, 98,401.65 and 39,474.44 is: 54,475.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,304.98 : 98,401.65 = 39,474.44 : x
  2. Step 2: Convert to fraction form
    71,304.98/98,401.65 = 39,474.44/x
  3. Step 3: Cross multiply
    71,304.98x = 98,401.65 × 39,474.44
  4. Step 4: Simplify right side
    71,304.98x = 3,884,350,028.83
  5. Step 5: Solve for x
    x = 3,884,350,028.83/71,304.98
  6. Step 6: Final answer
    x = 54,475.16

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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.