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Finding the Fourth Proportional to 8,613.01, 12,918.02 and 2,371.52

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Solution

The fourth proportional to 8,613.01, 12,918.02 and 2,371.52 is: 3,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.01 : 12,918.02 = 2,371.52 : x
  2. Step 2: Convert to fraction form
    8,613.01/12,918.02 = 2,371.52/x
  3. Step 3: Cross multiply
    8,613.01x = 12,918.02 × 2,371.52
  4. Step 4: Simplify right side
    8,613.01x = 30,635,363.23
  5. Step 5: Solve for x
    x = 30,635,363.23/8,613.01
  6. Step 6: Final answer
    x = 3,556.87

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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.