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Finding the Fourth Proportional to 2,691.92, 4,037.10 and 1,048.10

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Solution

The fourth proportional to 2,691.92, 4,037.10 and 1,048.10 is: 1,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.92 : 4,037.10 = 1,048.10 : x
  2. Step 2: Convert to fraction form
    2,691.92/4,037.10 = 1,048.10/x
  3. Step 3: Cross multiply
    2,691.92x = 4,037.10 × 1,048.10
  4. Step 4: Simplify right side
    2,691.92x = 4,231,284.51
  5. Step 5: Solve for x
    x = 4,231,284.51/2,691.92
  6. Step 6: Final answer
    x = 1,571.85

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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.