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Finding the Fourth Proportional to 9,646.17, 14,469.75 and 2,721.21

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Solution

The fourth proportional to 9,646.17, 14,469.75 and 2,721.21 is: 4,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,646.17 : 14,469.75 = 2,721.21 : x
  2. Step 2: Convert to fraction form
    9,646.17/14,469.75 = 2,721.21/x
  3. Step 3: Cross multiply
    9,646.17x = 14,469.75 × 2,721.21
  4. Step 4: Simplify right side
    9,646.17x = 39,375,228.40
  5. Step 5: Solve for x
    x = 39,375,228.40/9,646.17
  6. Step 6: Final answer
    x = 4,081.95

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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.