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Finding the Fourth Proportional to 7,074.68, 10,612.49 and 2,144.68

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Solution

The fourth proportional to 7,074.68, 10,612.49 and 2,144.68 is: 3,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.68 : 10,612.49 = 2,144.68 : x
  2. Step 2: Convert to fraction form
    7,074.68/10,612.49 = 2,144.68/x
  3. Step 3: Cross multiply
    7,074.68x = 10,612.49 × 2,144.68
  4. Step 4: Simplify right side
    7,074.68x = 22,760,357.80
  5. Step 5: Solve for x
    x = 22,760,357.80/7,074.68
  6. Step 6: Final answer
    x = 3,217.16

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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.