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Finding the Fourth Proportional to 18,901.29, 26,082.08 and 10,944.05

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Solution

The fourth proportional to 18,901.29, 26,082.08 and 10,944.05 is: 15,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.29 : 26,082.08 = 10,944.05 : x
  2. Step 2: Convert to fraction form
    18,901.29/26,082.08 = 10,944.05/x
  3. Step 3: Cross multiply
    18,901.29x = 26,082.08 × 10,944.05
  4. Step 4: Simplify right side
    18,901.29x = 285,443,587.62
  5. Step 5: Solve for x
    x = 285,443,587.62/18,901.29
  6. Step 6: Final answer
    x = 15,101.80

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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.