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Finding the Fourth Proportional to 48,337.72, 72,510.03 and 20,229.47

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Solution

The fourth proportional to 48,337.72, 72,510.03 and 20,229.47 is: 30,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,337.72 : 72,510.03 = 20,229.47 : x
  2. Step 2: Convert to fraction form
    48,337.72/72,510.03 = 20,229.47/x
  3. Step 3: Cross multiply
    48,337.72x = 72,510.03 × 20,229.47
  4. Step 4: Simplify right side
    48,337.72x = 1,466,839,012.89
  5. Step 5: Solve for x
    x = 1,466,839,012.89/48,337.72
  6. Step 6: Final answer
    x = 30,345.64

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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.