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Finding the Fourth Proportional to 7,053.72, 9,733.92 and 3,909.96

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Solution

The fourth proportional to 7,053.72, 9,733.92 and 3,909.96 is: 5,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,053.72 : 9,733.92 = 3,909.96 : x
  2. Step 2: Convert to fraction form
    7,053.72/9,733.92 = 3,909.96/x
  3. Step 3: Cross multiply
    7,053.72x = 9,733.92 × 3,909.96
  4. Step 4: Simplify right side
    7,053.72x = 38,059,237.84
  5. Step 5: Solve for x
    x = 38,059,237.84/7,053.72
  6. Step 6: Final answer
    x = 5,395.63

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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.