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Finding the Fourth Proportional to 6,766.93, 9,339.87 and 4,113.78

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Solution

The fourth proportional to 6,766.93, 9,339.87 and 4,113.78 is: 5,677.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,766.93 : 9,339.87 = 4,113.78 : x
  2. Step 2: Convert to fraction form
    6,766.93/9,339.87 = 4,113.78/x
  3. Step 3: Cross multiply
    6,766.93x = 9,339.87 × 4,113.78
  4. Step 4: Simplify right side
    6,766.93x = 38,422,170.41
  5. Step 5: Solve for x
    x = 38,422,170.41/6,766.93
  6. Step 6: Final answer
    x = 5,677.93

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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.