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Finding the Fourth Proportional to 8,708.35, 13,062.53 and 2,134.60

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Solution

The fourth proportional to 8,708.35, 13,062.53 and 2,134.60 is: 3,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.35 : 13,062.53 = 2,134.60 : x
  2. Step 2: Convert to fraction form
    8,708.35/13,062.53 = 2,134.60/x
  3. Step 3: Cross multiply
    8,708.35x = 13,062.53 × 2,134.60
  4. Step 4: Simplify right side
    8,708.35x = 27,883,265.87
  5. Step 5: Solve for x
    x = 27,883,265.87/8,708.35
  6. Step 6: Final answer
    x = 3,201.90

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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.