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Finding the Fourth Proportional to 6,441, 9,661.50 and 2,548.14

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Solution

The fourth proportional to 6,441, 9,661.50 and 2,548.14 is: 3,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,441 : 9,661.50 = 2,548.14 : x
  2. Step 2: Convert to fraction form
    6,441/9,661.50 = 2,548.14/x
  3. Step 3: Cross multiply
    6,441x = 9,661.50 × 2,548.14
  4. Step 4: Simplify right side
    6,441x = 24,618,854.61
  5. Step 5: Solve for x
    x = 24,618,854.61/6,441
  6. Step 6: Final answer
    x = 3,822.21

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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.