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Finding the Fourth Proportional to 17,290.87, 25,943.90 and 6,764.11

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Solution

The fourth proportional to 17,290.87, 25,943.90 and 6,764.11 is: 10,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,290.87 : 25,943.90 = 6,764.11 : x
  2. Step 2: Convert to fraction form
    17,290.87/25,943.90 = 6,764.11/x
  3. Step 3: Cross multiply
    17,290.87x = 25,943.90 × 6,764.11
  4. Step 4: Simplify right side
    17,290.87x = 175,487,294.75
  5. Step 5: Solve for x
    x = 175,487,294.75/17,290.87
  6. Step 6: Final answer
    x = 10,149.13

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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.