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Finding the Fourth Proportional to 4,691.76, 7,039.34 and 2,195.14

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Solution

The fourth proportional to 4,691.76, 7,039.34 and 2,195.14 is: 3,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.76 : 7,039.34 = 2,195.14 : x
  2. Step 2: Convert to fraction form
    4,691.76/7,039.34 = 2,195.14/x
  3. Step 3: Cross multiply
    4,691.76x = 7,039.34 × 2,195.14
  4. Step 4: Simplify right side
    4,691.76x = 15,452,336.81
  5. Step 5: Solve for x
    x = 15,452,336.81/4,691.76
  6. Step 6: Final answer
    x = 3,293.51

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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.