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Finding the Fourth Proportional to 18,206.72, 25,101.96 and 12,233.72

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Solution

The fourth proportional to 18,206.72, 25,101.96 and 12,233.72 is: 16,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.72 : 25,101.96 = 12,233.72 : x
  2. Step 2: Convert to fraction form
    18,206.72/25,101.96 = 12,233.72/x
  3. Step 3: Cross multiply
    18,206.72x = 25,101.96 × 12,233.72
  4. Step 4: Simplify right side
    18,206.72x = 307,090,350.09
  5. Step 5: Solve for x
    x = 307,090,350.09/18,206.72
  6. Step 6: Final answer
    x = 16,866.87

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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.