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Finding the Fourth Proportional to 12,166.48, 18,249.72 and 2,932.48

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Solution

The fourth proportional to 12,166.48, 18,249.72 and 2,932.48 is: 4,398.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.48 : 18,249.72 = 2,932.48 : x
  2. Step 2: Convert to fraction form
    12,166.48/18,249.72 = 2,932.48/x
  3. Step 3: Cross multiply
    12,166.48x = 18,249.72 × 2,932.48
  4. Step 4: Simplify right side
    12,166.48x = 53,516,938.91
  5. Step 5: Solve for x
    x = 53,516,938.91/12,166.48
  6. Step 6: Final answer
    x = 4,398.72

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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.