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Finding the Fourth Proportional to 60,491.62, 90,658.47 and 30,884.42

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Solution

The fourth proportional to 60,491.62, 90,658.47 and 30,884.42 is: 46,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,491.62 : 90,658.47 = 30,884.42 : x
  2. Step 2: Convert to fraction form
    60,491.62/90,658.47 = 30,884.42/x
  3. Step 3: Cross multiply
    60,491.62x = 90,658.47 × 30,884.42
  4. Step 4: Simplify right side
    60,491.62x = 2,799,934,264.04
  5. Step 5: Solve for x
    x = 2,799,934,264.04/60,491.62
  6. Step 6: Final answer
    x = 46,286.32

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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.