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Finding the Fourth Proportional to 5,225.67, 7,211.17 and 2,867.76

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Solution

The fourth proportional to 5,225.67, 7,211.17 and 2,867.76 is: 3,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.67 : 7,211.17 = 2,867.76 : x
  2. Step 2: Convert to fraction form
    5,225.67/7,211.17 = 2,867.76/x
  3. Step 3: Cross multiply
    5,225.67x = 7,211.17 × 2,867.76
  4. Step 4: Simplify right side
    5,225.67x = 20,679,904.88
  5. Step 5: Solve for x
    x = 20,679,904.88/5,225.67
  6. Step 6: Final answer
    x = 3,957.37

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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.