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Finding the Fourth Proportional to 58,375.57, 87,523.36 and 20,934.84

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Solution

The fourth proportional to 58,375.57, 87,523.36 and 20,934.84 is: 31,387.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,375.57 : 87,523.36 = 20,934.84 : x
  2. Step 2: Convert to fraction form
    58,375.57/87,523.36 = 20,934.84/x
  3. Step 3: Cross multiply
    58,375.57x = 87,523.36 × 20,934.84
  4. Step 4: Simplify right side
    58,375.57x = 1,832,287,485.53
  5. Step 5: Solve for x
    x = 1,832,287,485.53/58,375.57
  6. Step 6: Final answer
    x = 31,387.92

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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.