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Finding the Fourth Proportional to 3,842.49, 5,764.11 and 1,031.29

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Solution

The fourth proportional to 3,842.49, 5,764.11 and 1,031.29 is: 1,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.49 : 5,764.11 = 1,031.29 : x
  2. Step 2: Convert to fraction form
    3,842.49/5,764.11 = 1,031.29/x
  3. Step 3: Cross multiply
    3,842.49x = 5,764.11 × 1,031.29
  4. Step 4: Simplify right side
    3,842.49x = 5,944,469.00
  5. Step 5: Solve for x
    x = 5,944,469.00/3,842.49
  6. Step 6: Final answer
    x = 1,547.04

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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.