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Finding the Fourth Proportional to 7,012.71, 10,519.70 and 2,015.13

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Solution

The fourth proportional to 7,012.71, 10,519.70 and 2,015.13 is: 3,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.71 : 10,519.70 = 2,015.13 : x
  2. Step 2: Convert to fraction form
    7,012.71/10,519.70 = 2,015.13/x
  3. Step 3: Cross multiply
    7,012.71x = 10,519.70 × 2,015.13
  4. Step 4: Simplify right side
    7,012.71x = 21,198,552.99
  5. Step 5: Solve for x
    x = 21,198,552.99/7,012.71
  6. Step 6: Final answer
    x = 3,022.88

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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.