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Finding the Fourth Proportional to 6,155.87, 8,495.72 and 3,671.87

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Solution

The fourth proportional to 6,155.87, 8,495.72 and 3,671.87 is: 5,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,155.87 : 8,495.72 = 3,671.87 : x
  2. Step 2: Convert to fraction form
    6,155.87/8,495.72 = 3,671.87/x
  3. Step 3: Cross multiply
    6,155.87x = 8,495.72 × 3,671.87
  4. Step 4: Simplify right side
    6,155.87x = 31,195,161.04
  5. Step 5: Solve for x
    x = 31,195,161.04/6,155.87
  6. Step 6: Final answer
    x = 5,067.55

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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.