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Finding the Fourth Proportional to 48,853.92, 73,280.69 and 20,769.60

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Solution

The fourth proportional to 48,853.92, 73,280.69 and 20,769.60 is: 31,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,853.92 : 73,280.69 = 20,769.60 : x
  2. Step 2: Convert to fraction form
    48,853.92/73,280.69 = 20,769.60/x
  3. Step 3: Cross multiply
    48,853.92x = 73,280.69 × 20,769.60
  4. Step 4: Simplify right side
    48,853.92x = 1,522,010,619.02
  5. Step 5: Solve for x
    x = 1,522,010,619.02/48,853.92
  6. Step 6: Final answer
    x = 31,154.32

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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.