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Finding the Fourth Proportional to 15,960.60, 22,028.22 and 9,676.08

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Solution

The fourth proportional to 15,960.60, 22,028.22 and 9,676.08 is: 13,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.60 : 22,028.22 = 9,676.08 : x
  2. Step 2: Convert to fraction form
    15,960.60/22,028.22 = 9,676.08/x
  3. Step 3: Cross multiply
    15,960.60x = 22,028.22 × 9,676.08
  4. Step 4: Simplify right side
    15,960.60x = 213,146,818.98
  5. Step 5: Solve for x
    x = 213,146,818.98/15,960.60
  6. Step 6: Final answer
    x = 13,354.56

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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.