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Finding the Fourth Proportional to 49,015.80, 72,969.39 and 48,724.20

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Solution

The fourth proportional to 49,015.80, 72,969.39 and 48,724.20 is: 72,535.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,015.80 : 72,969.39 = 48,724.20 : x
  2. Step 2: Convert to fraction form
    49,015.80/72,969.39 = 48,724.20/x
  3. Step 3: Cross multiply
    49,015.80x = 72,969.39 × 48,724.20
  4. Step 4: Simplify right side
    49,015.80x = 3,555,375,152.24
  5. Step 5: Solve for x
    x = 3,555,375,152.24/49,015.80
  6. Step 6: Final answer
    x = 72,535.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.