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Finding the Fourth Proportional to 69,744.80, 96,249.48 and 39,533.20

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Solution

The fourth proportional to 69,744.80, 96,249.48 and 39,533.20 is: 54,556.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,744.80 : 96,249.48 = 39,533.20 : x
  2. Step 2: Convert to fraction form
    69,744.80/96,249.48 = 39,533.20/x
  3. Step 3: Cross multiply
    69,744.80x = 96,249.48 × 39,533.20
  4. Step 4: Simplify right side
    69,744.80x = 3,805,049,942.74
  5. Step 5: Solve for x
    x = 3,805,049,942.74/69,744.80
  6. Step 6: Final answer
    x = 54,556.75

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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.