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Finding the Fourth Proportional to 1,551.64, 2,324.12 and 1,031.88

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Solution

The fourth proportional to 1,551.64, 2,324.12 and 1,031.88 is: 1,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.64 : 2,324.12 = 1,031.88 : x
  2. Step 2: Convert to fraction form
    1,551.64/2,324.12 = 1,031.88/x
  3. Step 3: Cross multiply
    1,551.64x = 2,324.12 × 1,031.88
  4. Step 4: Simplify right side
    1,551.64x = 2,398,212.95
  5. Step 5: Solve for x
    x = 2,398,212.95/1,551.64
  6. Step 6: Final answer
    x = 1,545.60

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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.