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Finding the Fourth Proportional to 7,053.54, 9,734.21 and 3,909.79

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Solution

The fourth proportional to 7,053.54, 9,734.21 and 3,909.79 is: 5,395.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,053.54 : 9,734.21 = 3,909.79 : x
  2. Step 2: Convert to fraction form
    7,053.54/9,734.21 = 3,909.79/x
  3. Step 3: Cross multiply
    7,053.54x = 9,734.21 × 3,909.79
  4. Step 4: Simplify right side
    7,053.54x = 38,058,716.92
  5. Step 5: Solve for x
    x = 38,058,716.92/7,053.54
  6. Step 6: Final answer
    x = 5,395.69

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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.