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Finding the Fourth Proportional to 8,508.58, 12,770.60 and 4,351.46

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Solution

The fourth proportional to 8,508.58, 12,770.60 and 4,351.46 is: 6,531.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.58 : 12,770.60 = 4,351.46 : x
  2. Step 2: Convert to fraction form
    8,508.58/12,770.60 = 4,351.46/x
  3. Step 3: Cross multiply
    8,508.58x = 12,770.60 × 4,351.46
  4. Step 4: Simplify right side
    8,508.58x = 55,570,669.47
  5. Step 5: Solve for x
    x = 55,570,669.47/8,508.58
  6. Step 6: Final answer
    x = 6,531.14

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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.