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Finding the Fourth Proportional to 8,597.60, 12,898.20 and 2,754.80

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Solution

The fourth proportional to 8,597.60, 12,898.20 and 2,754.80 is: 4,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.60 : 12,898.20 = 2,754.80 : x
  2. Step 2: Convert to fraction form
    8,597.60/12,898.20 = 2,754.80/x
  3. Step 3: Cross multiply
    8,597.60x = 12,898.20 × 2,754.80
  4. Step 4: Simplify right side
    8,597.60x = 35,531,961.36
  5. Step 5: Solve for x
    x = 35,531,961.36/8,597.60
  6. Step 6: Final answer
    x = 4,132.78

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1.5x scale

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.