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Finding the Fourth Proportional to 58,565.70, 80,820.72 and 31,708.23

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Solution

The fourth proportional to 58,565.70, 80,820.72 and 31,708.23 is: 43,757.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,565.70 : 80,820.72 = 31,708.23 : x
  2. Step 2: Convert to fraction form
    58,565.70/80,820.72 = 31,708.23/x
  3. Step 3: Cross multiply
    58,565.70x = 80,820.72 × 31,708.23
  4. Step 4: Simplify right side
    58,565.70x = 2,562,681,978.53
  5. Step 5: Solve for x
    x = 2,562,681,978.53/58,565.70
  6. Step 6: Final answer
    x = 43,757.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.