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Finding the Fourth Proportional to 3,531.84, 5,294.04 and 1,339.62

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Solution

The fourth proportional to 3,531.84, 5,294.04 and 1,339.62 is: 2,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.84 : 5,294.04 = 1,339.62 : x
  2. Step 2: Convert to fraction form
    3,531.84/5,294.04 = 1,339.62/x
  3. Step 3: Cross multiply
    3,531.84x = 5,294.04 × 1,339.62
  4. Step 4: Simplify right side
    3,531.84x = 7,092,001.86
  5. Step 5: Solve for x
    x = 7,092,001.86/3,531.84
  6. Step 6: Final answer
    x = 2,008.02

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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.