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Finding the Fourth Proportional to 18,945.20, 26,082.06 and 18,010.10

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Solution

The fourth proportional to 18,945.20, 26,082.06 and 18,010.10 is: 24,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.20 : 26,082.06 = 18,010.10 : x
  2. Step 2: Convert to fraction form
    18,945.20/26,082.06 = 18,010.10/x
  3. Step 3: Cross multiply
    18,945.20x = 26,082.06 × 18,010.10
  4. Step 4: Simplify right side
    18,945.20x = 469,740,508.81
  5. Step 5: Solve for x
    x = 469,740,508.81/18,945.20
  6. Step 6: Final answer
    x = 24,794.70

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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.