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Finding the Fourth Proportional to 5,697.33, 7,862.11 and 3,179.40

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Solution

The fourth proportional to 5,697.33, 7,862.11 and 3,179.40 is: 4,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,697.33 : 7,862.11 = 3,179.40 : x
  2. Step 2: Convert to fraction form
    5,697.33/7,862.11 = 3,179.40/x
  3. Step 3: Cross multiply
    5,697.33x = 7,862.11 × 3,179.40
  4. Step 4: Simplify right side
    5,697.33x = 24,996,792.53
  5. Step 5: Solve for x
    x = 24,996,792.53/5,697.33
  6. Step 6: Final answer
    x = 4,387.46

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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.