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Finding the Fourth Proportional to 57,092.70, 85,643.16 and 17,652.90

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Solution

The fourth proportional to 57,092.70, 85,643.16 and 17,652.90 is: 26,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,092.70 : 85,643.16 = 17,652.90 : x
  2. Step 2: Convert to fraction form
    57,092.70/85,643.16 = 17,652.90/x
  3. Step 3: Cross multiply
    57,092.70x = 85,643.16 × 17,652.90
  4. Step 4: Simplify right side
    57,092.70x = 1,511,850,139.16
  5. Step 5: Solve for x
    x = 1,511,850,139.16/57,092.70
  6. Step 6: Final answer
    x = 26,480.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.