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Finding the Fourth Proportional to 18,902.64, 26,082.44 and 10,943.48

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Solution

The fourth proportional to 18,902.64, 26,082.44 and 10,943.48 is: 15,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.64 : 26,082.44 = 10,943.48 : x
  2. Step 2: Convert to fraction form
    18,902.64/26,082.44 = 10,943.48/x
  3. Step 3: Cross multiply
    18,902.64x = 26,082.44 × 10,943.48
  4. Step 4: Simplify right side
    18,902.64x = 285,432,660.49
  5. Step 5: Solve for x
    x = 285,432,660.49/18,902.64
  6. Step 6: Final answer
    x = 15,100.15

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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.