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Finding the Fourth Proportional to 12,114.48, 18,171.48 and 3,794.52

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Solution

The fourth proportional to 12,114.48, 18,171.48 and 3,794.52 is: 5,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.48 : 18,171.48 = 3,794.52 : x
  2. Step 2: Convert to fraction form
    12,114.48/18,171.48 = 3,794.52/x
  3. Step 3: Cross multiply
    12,114.48x = 18,171.48 × 3,794.52
  4. Step 4: Simplify right side
    12,114.48x = 68,952,044.29
  5. Step 5: Solve for x
    x = 68,952,044.29/12,114.48
  6. Step 6: Final answer
    x = 5,691.70

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1.5x scale

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.