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Finding the Fourth Proportional to 3,348.97, 4,621.61 and 1,856.91

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Solution

The fourth proportional to 3,348.97, 4,621.61 and 1,856.91 is: 2,562.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.97 : 4,621.61 = 1,856.91 : x
  2. Step 2: Convert to fraction form
    3,348.97/4,621.61 = 1,856.91/x
  3. Step 3: Cross multiply
    3,348.97x = 4,621.61 × 1,856.91
  4. Step 4: Simplify right side
    3,348.97x = 8,581,899.36
  5. Step 5: Solve for x
    x = 8,581,899.36/3,348.97
  6. Step 6: Final answer
    x = 2,562.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.