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Finding the Fourth Proportional to 4,671.35, 6,447.72 and 3,158.22

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Solution

The fourth proportional to 4,671.35, 6,447.72 and 3,158.22 is: 4,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.35 : 6,447.72 = 3,158.22 : x
  2. Step 2: Convert to fraction form
    4,671.35/6,447.72 = 3,158.22/x
  3. Step 3: Cross multiply
    4,671.35x = 6,447.72 × 3,158.22
  4. Step 4: Simplify right side
    4,671.35x = 20,363,329.58
  5. Step 5: Solve for x
    x = 20,363,329.58/4,671.35
  6. Step 6: Final answer
    x = 4,359.19

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