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Finding the Fourth Proportional to 15,636.60, 23,446.80 and 5,770.80

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Solution

The fourth proportional to 15,636.60, 23,446.80 and 5,770.80 is: 8,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.60 : 23,446.80 = 5,770.80 : x
  2. Step 2: Convert to fraction form
    15,636.60/23,446.80 = 5,770.80/x
  3. Step 3: Cross multiply
    15,636.60x = 23,446.80 × 5,770.80
  4. Step 4: Simplify right side
    15,636.60x = 135,306,793.44
  5. Step 5: Solve for x
    x = 135,306,793.44/15,636.60
  6. Step 6: Final answer
    x = 8,653.21

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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.