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Finding the Fourth Proportional to 69,722.54, 96,213.20 and 37,891.24

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Solution

The fourth proportional to 69,722.54, 96,213.20 and 37,891.24 is: 52,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,722.54 : 96,213.20 = 37,891.24 : x
  2. Step 2: Convert to fraction form
    69,722.54/96,213.20 = 37,891.24/x
  3. Step 3: Cross multiply
    69,722.54x = 96,213.20 × 37,891.24
  4. Step 4: Simplify right side
    69,722.54x = 3,645,637,452.37
  5. Step 5: Solve for x
    x = 3,645,637,452.37/69,722.54
  6. Step 6: Final answer
    x = 52,287.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.