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Finding the Fourth Proportional to 3,339.88, 5,010.08 and 1,031.38

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Solution

The fourth proportional to 3,339.88, 5,010.08 and 1,031.38 is: 1,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.88 : 5,010.08 = 1,031.38 : x
  2. Step 2: Convert to fraction form
    3,339.88/5,010.08 = 1,031.38/x
  3. Step 3: Cross multiply
    3,339.88x = 5,010.08 × 1,031.38
  4. Step 4: Simplify right side
    3,339.88x = 5,167,296.31
  5. Step 5: Solve for x
    x = 5,167,296.31/3,339.88
  6. Step 6: Final answer
    x = 1,547.15

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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.