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Finding the Fourth Proportional to 69,040.71, 95,279.63 and 38,835.54

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Solution

The fourth proportional to 69,040.71, 95,279.63 and 38,835.54 is: 53,594.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,040.71 : 95,279.63 = 38,835.54 : x
  2. Step 2: Convert to fraction form
    69,040.71/95,279.63 = 38,835.54/x
  3. Step 3: Cross multiply
    69,040.71x = 95,279.63 × 38,835.54
  4. Step 4: Simplify right side
    69,040.71x = 3,700,235,687.87
  5. Step 5: Solve for x
    x = 3,700,235,687.87/69,040.71
  6. Step 6: Final answer
    x = 53,594.98

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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.