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Finding the Fourth Proportional to 15,951.01, 22,042.76 and 11,965.21

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Solution

The fourth proportional to 15,951.01, 22,042.76 and 11,965.21 is: 16,534.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.01 : 22,042.76 = 11,965.21 : x
  2. Step 2: Convert to fraction form
    15,951.01/22,042.76 = 11,965.21/x
  3. Step 3: Cross multiply
    15,951.01x = 22,042.76 × 11,965.21
  4. Step 4: Simplify right side
    15,951.01x = 263,746,252.38
  5. Step 5: Solve for x
    x = 263,746,252.38/15,951.01
  6. Step 6: Final answer
    x = 16,534.77

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Similar ratio
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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.