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Finding the Fourth Proportional to 69,751.52, 96,235.44 and 39,937.76

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Solution

The fourth proportional to 69,751.52, 96,235.44 and 39,937.76 is: 55,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,751.52 : 96,235.44 = 39,937.76 : x
  2. Step 2: Convert to fraction form
    69,751.52/96,235.44 = 39,937.76/x
  3. Step 3: Cross multiply
    69,751.52x = 96,235.44 × 39,937.76
  4. Step 4: Simplify right side
    69,751.52x = 3,843,427,906.21
  5. Step 5: Solve for x
    x = 3,843,427,906.21/69,751.52
  6. Step 6: Final answer
    x = 55,101.71

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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.