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Finding the Fourth Proportional to 57,772.60, 86,658.90 and 46,108.60

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Solution

The fourth proportional to 57,772.60, 86,658.90 and 46,108.60 is: 69,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,772.60 : 86,658.90 = 46,108.60 : x
  2. Step 2: Convert to fraction form
    57,772.60/86,658.90 = 46,108.60/x
  3. Step 3: Cross multiply
    57,772.60x = 86,658.90 × 46,108.60
  4. Step 4: Simplify right side
    57,772.60x = 3,995,720,556.54
  5. Step 5: Solve for x
    x = 3,995,720,556.54/57,772.60
  6. Step 6: Final answer
    x = 69,162.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.