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Finding the Fourth Proportional to 17,874.87, 26,810.25 and 4,728.29

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Solution

The fourth proportional to 17,874.87, 26,810.25 and 4,728.29 is: 7,091.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,874.87 : 26,810.25 = 4,728.29 : x
  2. Step 2: Convert to fraction form
    17,874.87/26,810.25 = 4,728.29/x
  3. Step 3: Cross multiply
    17,874.87x = 26,810.25 × 4,728.29
  4. Step 4: Simplify right side
    17,874.87x = 126,766,502.92
  5. Step 5: Solve for x
    x = 126,766,502.92/17,874.87
  6. Step 6: Final answer
    x = 7,091.88

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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.