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Finding the Fourth Proportional to 5,750.62, 7,938.18 and 3,863.31

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Solution

The fourth proportional to 5,750.62, 7,938.18 and 3,863.31 is: 5,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,750.62 : 7,938.18 = 3,863.31 : x
  2. Step 2: Convert to fraction form
    5,750.62/7,938.18 = 3,863.31/x
  3. Step 3: Cross multiply
    5,750.62x = 7,938.18 × 3,863.31
  4. Step 4: Simplify right side
    5,750.62x = 30,667,650.18
  5. Step 5: Solve for x
    x = 30,667,650.18/5,750.62
  6. Step 6: Final answer
    x = 5,332.93

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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.