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Finding the Fourth Proportional to 69,189.50, 95,475.84 and 38,965.16

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Solution

The fourth proportional to 69,189.50, 95,475.84 and 38,965.16 is: 53,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,189.50 : 95,475.84 = 38,965.16 : x
  2. Step 2: Convert to fraction form
    69,189.50/95,475.84 = 38,965.16/x
  3. Step 3: Cross multiply
    69,189.50x = 95,475.84 × 38,965.16
  4. Step 4: Simplify right side
    69,189.50x = 3,720,231,381.73
  5. Step 5: Solve for x
    x = 3,720,231,381.73/69,189.50
  6. Step 6: Final answer
    x = 53,768.73

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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.