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Finding the Fourth Proportional to 15,046.52, 20,770.99 and 9,676.76

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Solution

The fourth proportional to 15,046.52, 20,770.99 and 9,676.76 is: 13,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.52 : 20,770.99 = 9,676.76 : x
  2. Step 2: Convert to fraction form
    15,046.52/20,770.99 = 9,676.76/x
  3. Step 3: Cross multiply
    15,046.52x = 20,770.99 × 9,676.76
  4. Step 4: Simplify right side
    15,046.52x = 200,995,885.19
  5. Step 5: Solve for x
    x = 200,995,885.19/15,046.52
  6. Step 6: Final answer
    x = 13,358.30

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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.