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Finding the Fourth Proportional to 60,338.67, 90,510.45 and 28,732.47

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Solution

The fourth proportional to 60,338.67, 90,510.45 and 28,732.47 is: 43,099.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,338.67 : 90,510.45 = 28,732.47 : x
  2. Step 2: Convert to fraction form
    60,338.67/90,510.45 = 28,732.47/x
  3. Step 3: Cross multiply
    60,338.67x = 90,510.45 × 28,732.47
  4. Step 4: Simplify right side
    60,338.67x = 2,600,588,789.31
  5. Step 5: Solve for x
    x = 2,600,588,789.31/60,338.67
  6. Step 6: Final answer
    x = 43,099.87

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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.