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Finding the Fourth Proportional to 27,324.60, 40,964.40 and 12,332.70

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Solution

The fourth proportional to 27,324.60, 40,964.40 and 12,332.70 is: 18,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,324.60 : 40,964.40 = 12,332.70 : x
  2. Step 2: Convert to fraction form
    27,324.60/40,964.40 = 12,332.70/x
  3. Step 3: Cross multiply
    27,324.60x = 40,964.40 × 12,332.70
  4. Step 4: Simplify right side
    27,324.60x = 505,201,655.88
  5. Step 5: Solve for x
    x = 505,201,655.88/27,324.60
  6. Step 6: Final answer
    x = 18,488.89

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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.