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Finding the Fourth Proportional to 11,758.44, 16,223.76 and 6,721.14

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Solution

The fourth proportional to 11,758.44, 16,223.76 and 6,721.14 is: 9,273.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,758.44 : 16,223.76 = 6,721.14 : x
  2. Step 2: Convert to fraction form
    11,758.44/16,223.76 = 6,721.14/x
  3. Step 3: Cross multiply
    11,758.44x = 16,223.76 × 6,721.14
  4. Step 4: Simplify right side
    11,758.44x = 109,042,162.29
  5. Step 5: Solve for x
    x = 109,042,162.29/11,758.44
  6. Step 6: Final answer
    x = 9,273.52

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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.