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Finding the Fourth Proportional to 6,931.15, 10,398.10 and 2,250.29

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Solution

The fourth proportional to 6,931.15, 10,398.10 and 2,250.29 is: 3,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.15 : 10,398.10 = 2,250.29 : x
  2. Step 2: Convert to fraction form
    6,931.15/10,398.10 = 2,250.29/x
  3. Step 3: Cross multiply
    6,931.15x = 10,398.10 × 2,250.29
  4. Step 4: Simplify right side
    6,931.15x = 23,398,729.20
  5. Step 5: Solve for x
    x = 23,398,729.20/6,931.15
  6. Step 6: Final answer
    x = 3,375.88

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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.