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Finding the Fourth Proportional to 61,990.52, 85,549.57 and 38,125.08

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Solution

The fourth proportional to 61,990.52, 85,549.57 and 38,125.08 is: 52,614.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.52 : 85,549.57 = 38,125.08 : x
  2. Step 2: Convert to fraction form
    61,990.52/85,549.57 = 38,125.08/x
  3. Step 3: Cross multiply
    61,990.52x = 85,549.57 × 38,125.08
  4. Step 4: Simplify right side
    61,990.52x = 3,261,584,104.90
  5. Step 5: Solve for x
    x = 3,261,584,104.90/61,990.52
  6. Step 6: Final answer
    x = 52,614.24

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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.