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Finding the Fourth Proportional to 17,248.20, 25,872.90 and 4,769.16

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Solution

The fourth proportional to 17,248.20, 25,872.90 and 4,769.16 is: 7,153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,248.20 : 25,872.90 = 4,769.16 : x
  2. Step 2: Convert to fraction form
    17,248.20/25,872.90 = 4,769.16/x
  3. Step 3: Cross multiply
    17,248.20x = 25,872.90 × 4,769.16
  4. Step 4: Simplify right side
    17,248.20x = 123,391,999.76
  5. Step 5: Solve for x
    x = 123,391,999.76/17,248.20
  6. Step 6: Final answer
    x = 7,153.91

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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.