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Finding the Fourth Proportional to 67,458.80, 101,107.20 and 27,995.60

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Solution

The fourth proportional to 67,458.80, 101,107.20 and 27,995.60 is: 41,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,458.80 : 101,107.20 = 27,995.60 : x
  2. Step 2: Convert to fraction form
    67,458.80/101,107.20 = 27,995.60/x
  3. Step 3: Cross multiply
    67,458.80x = 101,107.20 × 27,995.60
  4. Step 4: Simplify right side
    67,458.80x = 2,830,556,728.32
  5. Step 5: Solve for x
    x = 2,830,556,728.32/67,458.80
  6. Step 6: Final answer
    x = 41,959.78

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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.