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Finding the Fourth Proportional to 7,108.68, 10,669.36 and 7,082.22

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Solution

The fourth proportional to 7,108.68, 10,669.36 and 7,082.22 is: 10,629.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.68 : 10,669.36 = 7,082.22 : x
  2. Step 2: Convert to fraction form
    7,108.68/10,669.36 = 7,082.22/x
  3. Step 3: Cross multiply
    7,108.68x = 10,669.36 × 7,082.22
  4. Step 4: Simplify right side
    7,108.68x = 75,562,754.78
  5. Step 5: Solve for x
    x = 75,562,754.78/7,108.68
  6. Step 6: Final answer
    x = 10,629.65

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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.