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Finding the Fourth Proportional to 7,131.74, 10,694.76 and 2,746.76

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Solution

The fourth proportional to 7,131.74, 10,694.76 and 2,746.76 is: 4,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.74 : 10,694.76 = 2,746.76 : x
  2. Step 2: Convert to fraction form
    7,131.74/10,694.76 = 2,746.76/x
  3. Step 3: Cross multiply
    7,131.74x = 10,694.76 × 2,746.76
  4. Step 4: Simplify right side
    7,131.74x = 29,375,938.98
  5. Step 5: Solve for x
    x = 29,375,938.98/7,131.74
  6. Step 6: Final answer
    x = 4,119.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.