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Finding the Fourth Proportional to 12,329.52, 18,493.08 and 6,781.04

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Solution

The fourth proportional to 12,329.52, 18,493.08 and 6,781.04 is: 10,170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.52 : 18,493.08 = 6,781.04 : x
  2. Step 2: Convert to fraction form
    12,329.52/18,493.08 = 6,781.04/x
  3. Step 3: Cross multiply
    12,329.52x = 18,493.08 × 6,781.04
  4. Step 4: Simplify right side
    12,329.52x = 125,402,315.20
  5. Step 5: Solve for x
    x = 125,402,315.20/12,329.52
  6. Step 6: Final answer
    x = 10,170.90

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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.