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Finding the Fourth Proportional to 48,480.85, 72,721.28 and 15,203.82

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Solution

The fourth proportional to 48,480.85, 72,721.28 and 15,203.82 is: 22,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,480.85 : 72,721.28 = 15,203.82 : x
  2. Step 2: Convert to fraction form
    48,480.85/72,721.28 = 15,203.82/x
  3. Step 3: Cross multiply
    48,480.85x = 72,721.28 × 15,203.82
  4. Step 4: Simplify right side
    48,480.85x = 1,105,641,562.00
  5. Step 5: Solve for x
    x = 1,105,641,562.00/48,480.85
  6. Step 6: Final answer
    x = 22,805.74

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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.