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Finding the Fourth Proportional to 2,691.53, 4,043.42 and 2,322.47

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Solution

The fourth proportional to 2,691.53, 4,043.42 and 2,322.47 is: 3,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.53 : 4,043.42 = 2,322.47 : x
  2. Step 2: Convert to fraction form
    2,691.53/4,043.42 = 2,322.47/x
  3. Step 3: Cross multiply
    2,691.53x = 4,043.42 × 2,322.47
  4. Step 4: Simplify right side
    2,691.53x = 9,390,728.85
  5. Step 5: Solve for x
    x = 9,390,728.85/2,691.53
  6. Step 6: Final answer
    x = 3,488.99

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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.