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Finding the Fourth Proportional to 15,003.83, 20,691.82 and 12,494.24

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Solution

The fourth proportional to 15,003.83, 20,691.82 and 12,494.24 is: 17,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.83 : 20,691.82 = 12,494.24 : x
  2. Step 2: Convert to fraction form
    15,003.83/20,691.82 = 12,494.24/x
  3. Step 3: Cross multiply
    15,003.83x = 20,691.82 × 12,494.24
  4. Step 4: Simplify right side
    15,003.83x = 258,528,565.12
  5. Step 5: Solve for x
    x = 258,528,565.12/15,003.83
  6. Step 6: Final answer
    x = 17,230.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.