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Finding the Fourth Proportional to 42,551.76, 58,722.48 and 23,689.20

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Solution

The fourth proportional to 42,551.76, 58,722.48 and 23,689.20 is: 32,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,551.76 : 58,722.48 = 23,689.20 : x
  2. Step 2: Convert to fraction form
    42,551.76/58,722.48 = 23,689.20/x
  3. Step 3: Cross multiply
    42,551.76x = 58,722.48 × 23,689.20
  4. Step 4: Simplify right side
    42,551.76x = 1,391,088,573.22
  5. Step 5: Solve for x
    x = 1,391,088,573.22/42,551.76
  6. Step 6: Final answer
    x = 32,691.68

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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.