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Finding the Fourth Proportional to 5,255.39, 7,252.53 and 2,865.41

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Solution

The fourth proportional to 5,255.39, 7,252.53 and 2,865.41 is: 3,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.39 : 7,252.53 = 2,865.41 : x
  2. Step 2: Convert to fraction form
    5,255.39/7,252.53 = 2,865.41/x
  3. Step 3: Cross multiply
    5,255.39x = 7,252.53 × 2,865.41
  4. Step 4: Simplify right side
    5,255.39x = 20,781,452.18
  5. Step 5: Solve for x
    x = 20,781,452.18/5,255.39
  6. Step 6: Final answer
    x = 3,954.31

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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.