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Finding the Fourth Proportional to 7,044.71, 9,721.91 and 3,901.19

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Solution

The fourth proportional to 7,044.71, 9,721.91 and 3,901.19 is: 5,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.71 : 9,721.91 = 3,901.19 : x
  2. Step 2: Convert to fraction form
    7,044.71/9,721.91 = 3,901.19/x
  3. Step 3: Cross multiply
    7,044.71x = 9,721.91 × 3,901.19
  4. Step 4: Simplify right side
    7,044.71x = 37,926,979.22
  5. Step 5: Solve for x
    x = 37,926,979.22/7,044.71
  6. Step 6: Final answer
    x = 5,383.76

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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.