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Finding the Fourth Proportional to 3,860.31, 5,334.08 and 3,023.31

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Solution

The fourth proportional to 3,860.31, 5,334.08 and 3,023.31 is: 4,177.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.31 : 5,334.08 = 3,023.31 : x
  2. Step 2: Convert to fraction form
    3,860.31/5,334.08 = 3,023.31/x
  3. Step 3: Cross multiply
    3,860.31x = 5,334.08 × 3,023.31
  4. Step 4: Simplify right side
    3,860.31x = 16,126,562.29
  5. Step 5: Solve for x
    x = 16,126,562.29/3,860.31
  6. Step 6: Final answer
    x = 4,177.53

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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.