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Finding the Fourth Proportional to 18,003.60, 24,869.18 and 16,326.88

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Solution

The fourth proportional to 18,003.60, 24,869.18 and 16,326.88 is: 22,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.60 : 24,869.18 = 16,326.88 : x
  2. Step 2: Convert to fraction form
    18,003.60/24,869.18 = 16,326.88/x
  3. Step 3: Cross multiply
    18,003.60x = 24,869.18 × 16,326.88
  4. Step 4: Simplify right side
    18,003.60x = 406,036,117.56
  5. Step 5: Solve for x
    x = 406,036,117.56/18,003.60
  6. Step 6: Final answer
    x = 22,553.05

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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.