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Finding the Fourth Proportional to 4,671.62, 6,443.77 and 2,808.62

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Solution

The fourth proportional to 4,671.62, 6,443.77 and 2,808.62 is: 3,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.62 : 6,443.77 = 2,808.62 : x
  2. Step 2: Convert to fraction form
    4,671.62/6,443.77 = 2,808.62/x
  3. Step 3: Cross multiply
    4,671.62x = 6,443.77 × 2,808.62
  4. Step 4: Simplify right side
    4,671.62x = 18,098,101.30
  5. Step 5: Solve for x
    x = 18,098,101.30/4,671.62
  6. Step 6: Final answer
    x = 3,874.05

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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.