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Finding the Fourth Proportional to 48,304.30, 72,456.45 and 13,243.90

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Solution

The fourth proportional to 48,304.30, 72,456.45 and 13,243.90 is: 19,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,304.30 : 72,456.45 = 13,243.90 : x
  2. Step 2: Convert to fraction form
    48,304.30/72,456.45 = 13,243.90/x
  3. Step 3: Cross multiply
    48,304.30x = 72,456.45 × 13,243.90
  4. Step 4: Simplify right side
    48,304.30x = 959,605,978.16
  5. Step 5: Solve for x
    x = 959,605,978.16/48,304.30
  6. Step 6: Final answer
    x = 19,865.85

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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.