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Finding the Fourth Proportional to 10,643.10, 15,963.44 and 4,069.14

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Solution

The fourth proportional to 10,643.10, 15,963.44 and 4,069.14 is: 6,103.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.10 : 15,963.44 = 4,069.14 : x
  2. Step 2: Convert to fraction form
    10,643.10/15,963.44 = 4,069.14/x
  3. Step 3: Cross multiply
    10,643.10x = 15,963.44 × 4,069.14
  4. Step 4: Simplify right side
    10,643.10x = 64,957,472.24
  5. Step 5: Solve for x
    x = 64,957,472.24/10,643.10
  6. Step 6: Final answer
    x = 6,103.25

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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.