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Finding the Fourth Proportional to 15,248.10, 22,872.15 and 7,472.10

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Solution

The fourth proportional to 15,248.10, 22,872.15 and 7,472.10 is: 11,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,248.10 : 22,872.15 = 7,472.10 : x
  2. Step 2: Convert to fraction form
    15,248.10/22,872.15 = 7,472.10/x
  3. Step 3: Cross multiply
    15,248.10x = 22,872.15 × 7,472.10
  4. Step 4: Simplify right side
    15,248.10x = 170,902,992.02
  5. Step 5: Solve for x
    x = 170,902,992.02/15,248.10
  6. Step 6: Final answer
    x = 11,208.15

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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.