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Finding the Fourth Proportional to 57,505.60, 86,232.80 and 26,350.40

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Solution

The fourth proportional to 57,505.60, 86,232.80 and 26,350.40 is: 39,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,505.60 : 86,232.80 = 26,350.40 : x
  2. Step 2: Convert to fraction form
    57,505.60/86,232.80 = 26,350.40/x
  3. Step 3: Cross multiply
    57,505.60x = 86,232.80 × 26,350.40
  4. Step 4: Simplify right side
    57,505.60x = 2,272,268,773.12
  5. Step 5: Solve for x
    x = 2,272,268,773.12/57,505.60
  6. Step 6: Final answer
    x = 39,513.87

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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.