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Finding the Fourth Proportional to 3,456.60, 5,163 and 2,482.20

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Solution

The fourth proportional to 3,456.60, 5,163 and 2,482.20 is: 3,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.60 : 5,163 = 2,482.20 : x
  2. Step 2: Convert to fraction form
    3,456.60/5,163 = 2,482.20/x
  3. Step 3: Cross multiply
    3,456.60x = 5,163 × 2,482.20
  4. Step 4: Simplify right side
    3,456.60x = 12,815,598.60
  5. Step 5: Solve for x
    x = 12,815,598.60/3,456.60
  6. Step 6: Final answer
    x = 3,707.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.