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Finding the Fourth Proportional to 5,574.60, 8,363.16 and 1,679.31

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Solution

The fourth proportional to 5,574.60, 8,363.16 and 1,679.31 is: 2,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.60 : 8,363.16 = 1,679.31 : x
  2. Step 2: Convert to fraction form
    5,574.60/8,363.16 = 1,679.31/x
  3. Step 3: Cross multiply
    5,574.60x = 8,363.16 × 1,679.31
  4. Step 4: Simplify right side
    5,574.60x = 14,044,338.22
  5. Step 5: Solve for x
    x = 14,044,338.22/5,574.60
  6. Step 6: Final answer
    x = 2,519.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.