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Finding the Fourth Proportional to 14,676.18, 20,252.93 and 7,961.61

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Solution

The fourth proportional to 14,676.18, 20,252.93 and 7,961.61 is: 10,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,676.18 : 20,252.93 = 7,961.61 : x
  2. Step 2: Convert to fraction form
    14,676.18/20,252.93 = 7,961.61/x
  3. Step 3: Cross multiply
    14,676.18x = 20,252.93 × 7,961.61
  4. Step 4: Simplify right side
    14,676.18x = 161,245,930.02
  5. Step 5: Solve for x
    x = 161,245,930.02/14,676.18
  6. Step 6: Final answer
    x = 10,986.91

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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.