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Finding the Fourth Proportional to 58,689, 88,034.22 and 21,753

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Solution

The fourth proportional to 58,689, 88,034.22 and 21,753 is: 32,629.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,689 : 88,034.22 = 21,753 : x
  2. Step 2: Convert to fraction form
    58,689/88,034.22 = 21,753/x
  3. Step 3: Cross multiply
    58,689x = 88,034.22 × 21,753
  4. Step 4: Simplify right side
    58,689x = 1,915,008,387.66
  5. Step 5: Solve for x
    x = 1,915,008,387.66/58,689
  6. Step 6: Final answer
    x = 32,629.77

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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.