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Finding the Fourth Proportional to 2,082.97, 3,124.70 and 696.49

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Solution

The fourth proportional to 2,082.97, 3,124.70 and 696.49 is: 1,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.97 : 3,124.70 = 696.49 : x
  2. Step 2: Convert to fraction form
    2,082.97/3,124.70 = 696.49/x
  3. Step 3: Cross multiply
    2,082.97x = 3,124.70 × 696.49
  4. Step 4: Simplify right side
    2,082.97x = 2,176,322.30
  5. Step 5: Solve for x
    x = 2,176,322.30/2,082.97
  6. Step 6: Final answer
    x = 1,044.82

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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.