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Finding the Fourth Proportional to 48,480.48, 72,721.62 and 15,199.80

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Solution

The fourth proportional to 48,480.48, 72,721.62 and 15,199.80 is: 22,799.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,480.48 : 72,721.62 = 15,199.80 : x
  2. Step 2: Convert to fraction form
    48,480.48/72,721.62 = 15,199.80/x
  3. Step 3: Cross multiply
    48,480.48x = 72,721.62 × 15,199.80
  4. Step 4: Simplify right side
    48,480.48x = 1,105,354,079.68
  5. Step 5: Solve for x
    x = 1,105,354,079.68/48,480.48
  6. Step 6: Final answer
    x = 22,799.98

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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.