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Finding the Fourth Proportional to 3,348.74, 4,621.28 and 1,856.68

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Solution

The fourth proportional to 3,348.74, 4,621.28 and 1,856.68 is: 2,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.74 : 4,621.28 = 1,856.68 : x
  2. Step 2: Convert to fraction form
    3,348.74/4,621.28 = 1,856.68/x
  3. Step 3: Cross multiply
    3,348.74x = 4,621.28 × 1,856.68
  4. Step 4: Simplify right side
    3,348.74x = 8,580,217.31
  5. Step 5: Solve for x
    x = 8,580,217.31/3,348.74
  6. Step 6: Final answer
    x = 2,562.22

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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.