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Finding the Fourth Proportional to 2,332.39, 3,498.90 and 851.42

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Solution

The fourth proportional to 2,332.39, 3,498.90 and 851.42 is: 1,277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,332.39 : 3,498.90 = 851.42 : x
  2. Step 2: Convert to fraction form
    2,332.39/3,498.90 = 851.42/x
  3. Step 3: Cross multiply
    2,332.39x = 3,498.90 × 851.42
  4. Step 4: Simplify right side
    2,332.39x = 2,979,019.14
  5. Step 5: Solve for x
    x = 2,979,019.14/2,332.39
  6. Step 6: Final answer
    x = 1,277.24

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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.