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Finding the Fourth Proportional to 15,043.92, 20,770.08 and 9,668.76

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Solution

The fourth proportional to 15,043.92, 20,770.08 and 9,668.76 is: 13,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.92 : 20,770.08 = 9,668.76 : x
  2. Step 2: Convert to fraction form
    15,043.92/20,770.08 = 9,668.76/x
  3. Step 3: Cross multiply
    15,043.92x = 20,770.08 × 9,668.76
  4. Step 4: Simplify right side
    15,043.92x = 200,820,918.70
  5. Step 5: Solve for x
    x = 200,820,918.70/15,043.92
  6. Step 6: Final answer
    x = 13,348.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.