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Finding the Fourth Proportional to 8,754.48, 12,044.16 and 7,629.84

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Solution

The fourth proportional to 8,754.48, 12,044.16 and 7,629.84 is: 10,496.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.48 : 12,044.16 = 7,629.84 : x
  2. Step 2: Convert to fraction form
    8,754.48/12,044.16 = 7,629.84/x
  3. Step 3: Cross multiply
    8,754.48x = 12,044.16 × 7,629.84
  4. Step 4: Simplify right side
    8,754.48x = 91,895,013.73
  5. Step 5: Solve for x
    x = 91,895,013.73/8,754.48
  6. Step 6: Final answer
    x = 10,496.91

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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.