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Finding the Fourth Proportional to 55,744.40, 83,616.60 and 49,620.80

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Solution

The fourth proportional to 55,744.40, 83,616.60 and 49,620.80 is: 74,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,744.40 : 83,616.60 = 49,620.80 : x
  2. Step 2: Convert to fraction form
    55,744.40/83,616.60 = 49,620.80/x
  3. Step 3: Cross multiply
    55,744.40x = 83,616.60 × 49,620.80
  4. Step 4: Simplify right side
    55,744.40x = 4,149,122,585.28
  5. Step 5: Solve for x
    x = 4,149,122,585.28/55,744.40
  6. Step 6: Final answer
    x = 74,431.20

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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.