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Finding the Fourth Proportional to 9,262.88, 13,896.92 and 3,720.11

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Solution

The fourth proportional to 9,262.88, 13,896.92 and 3,720.11 is: 5,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,262.88 : 13,896.92 = 3,720.11 : x
  2. Step 2: Convert to fraction form
    9,262.88/13,896.92 = 3,720.11/x
  3. Step 3: Cross multiply
    9,262.88x = 13,896.92 × 3,720.11
  4. Step 4: Simplify right side
    9,262.88x = 51,698,052.46
  5. Step 5: Solve for x
    x = 51,698,052.46/9,262.88
  6. Step 6: Final answer
    x = 5,581.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.