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Finding the Fourth Proportional to 85,525.57, 118,025.49 and 47,799.82

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Solution

The fourth proportional to 85,525.57, 118,025.49 and 47,799.82 is: 65,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,525.57 : 118,025.49 = 47,799.82 : x
  2. Step 2: Convert to fraction form
    85,525.57/118,025.49 = 47,799.82/x
  3. Step 3: Cross multiply
    85,525.57x = 118,025.49 × 47,799.82
  4. Step 4: Simplify right side
    85,525.57x = 5,641,597,177.41
  5. Step 5: Solve for x
    x = 5,641,597,177.41/85,525.57
  6. Step 6: Final answer
    x = 65,963.87

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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.