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Finding the Fourth Proportional to 18,177.96, 25,087.12 and 10,220.92

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Solution

The fourth proportional to 18,177.96, 25,087.12 and 10,220.92 is: 14,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,177.96 : 25,087.12 = 10,220.92 : x
  2. Step 2: Convert to fraction form
    18,177.96/25,087.12 = 10,220.92/x
  3. Step 3: Cross multiply
    18,177.96x = 25,087.12 × 10,220.92
  4. Step 4: Simplify right side
    18,177.96x = 256,413,446.55
  5. Step 5: Solve for x
    x = 256,413,446.55/18,177.96
  6. Step 6: Final answer
    x = 14,105.73

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Half scale
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Double scale
Find fourth proportional to 18,178.96, 25,088.50 and 10,221.92
Similar ratio
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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.