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Finding the Fourth Proportional to 74,042.80, 111,064.20 and 27,329.20

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Solution

The fourth proportional to 74,042.80, 111,064.20 and 27,329.20 is: 40,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,042.80 : 111,064.20 = 27,329.20 : x
  2. Step 2: Convert to fraction form
    74,042.80/111,064.20 = 27,329.20/x
  3. Step 3: Cross multiply
    74,042.80x = 111,064.20 × 27,329.20
  4. Step 4: Simplify right side
    74,042.80x = 3,035,295,734.64
  5. Step 5: Solve for x
    x = 3,035,295,734.64/74,042.80
  6. Step 6: Final answer
    x = 40,993.80

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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.