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Finding the Fourth Proportional to 49,482.80, 74,224.20 and 43,338.80

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Solution

The fourth proportional to 49,482.80, 74,224.20 and 43,338.80 is: 65,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,482.80 : 74,224.20 = 43,338.80 : x
  2. Step 2: Convert to fraction form
    49,482.80/74,224.20 = 43,338.80/x
  3. Step 3: Cross multiply
    49,482.80x = 74,224.20 × 43,338.80
  4. Step 4: Simplify right side
    49,482.80x = 3,216,787,758.96
  5. Step 5: Solve for x
    x = 3,216,787,758.96/49,482.80
  6. Step 6: Final answer
    x = 65,008.20

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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.