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Finding the Fourth Proportional to 80,353.28, 110,885.28 and 48,510.56

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Solution

The fourth proportional to 80,353.28, 110,885.28 and 48,510.56 is: 66,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,353.28 : 110,885.28 = 48,510.56 : x
  2. Step 2: Convert to fraction form
    80,353.28/110,885.28 = 48,510.56/x
  3. Step 3: Cross multiply
    80,353.28x = 110,885.28 × 48,510.56
  4. Step 4: Simplify right side
    80,353.28x = 5,379,107,028.56
  5. Step 5: Solve for x
    x = 5,379,107,028.56/80,353.28
  6. Step 6: Final answer
    x = 66,943.22

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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.