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Finding the Fourth Proportional to 7,044.75, 9,721.77 and 3,901.41

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Solution

The fourth proportional to 7,044.75, 9,721.77 and 3,901.41 is: 5,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.75 : 9,721.77 = 3,901.41 : x
  2. Step 2: Convert to fraction form
    7,044.75/9,721.77 = 3,901.41/x
  3. Step 3: Cross multiply
    7,044.75x = 9,721.77 × 3,901.41
  4. Step 4: Simplify right side
    7,044.75x = 37,928,610.70
  5. Step 5: Solve for x
    x = 37,928,610.70/7,044.75
  6. Step 6: Final answer
    x = 5,383.95

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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.