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Finding the Fourth Proportional to 5,854.78, 8,079.60 and 4,087.41

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Solution

The fourth proportional to 5,854.78, 8,079.60 and 4,087.41 is: 5,640.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.78 : 8,079.60 = 4,087.41 : x
  2. Step 2: Convert to fraction form
    5,854.78/8,079.60 = 4,087.41/x
  3. Step 3: Cross multiply
    5,854.78x = 8,079.60 × 4,087.41
  4. Step 4: Simplify right side
    5,854.78x = 33,024,645.32
  5. Step 5: Solve for x
    x = 33,024,645.32/5,854.78
  6. Step 6: Final answer
    x = 5,640.63

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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.