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Finding the Fourth Proportional to 48,715.70, 73,073.55 and 13,661.30

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Solution

The fourth proportional to 48,715.70, 73,073.55 and 13,661.30 is: 20,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,715.70 : 73,073.55 = 13,661.30 : x
  2. Step 2: Convert to fraction form
    48,715.70/73,073.55 = 13,661.30/x
  3. Step 3: Cross multiply
    48,715.70x = 73,073.55 × 13,661.30
  4. Step 4: Simplify right side
    48,715.70x = 998,279,688.62
  5. Step 5: Solve for x
    x = 998,279,688.62/48,715.70
  6. Step 6: Final answer
    x = 20,491.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.