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Finding the Fourth Proportional to 18,885.76, 26,061.24 and 10,927.42

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Solution

The fourth proportional to 18,885.76, 26,061.24 and 10,927.42 is: 15,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.76 : 26,061.24 = 10,927.42 : x
  2. Step 2: Convert to fraction form
    18,885.76/26,061.24 = 10,927.42/x
  3. Step 3: Cross multiply
    18,885.76x = 26,061.24 × 10,927.42
  4. Step 4: Simplify right side
    18,885.76x = 284,782,115.20
  5. Step 5: Solve for x
    x = 284,782,115.20/18,885.76
  6. Step 6: Final answer
    x = 15,079.20

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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.