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Finding the Fourth Proportional to 10,530.94, 15,791.10 and 3,952.49

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Solution

The fourth proportional to 10,530.94, 15,791.10 and 3,952.49 is: 5,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.94 : 15,791.10 = 3,952.49 : x
  2. Step 2: Convert to fraction form
    10,530.94/15,791.10 = 3,952.49/x
  3. Step 3: Cross multiply
    10,530.94x = 15,791.10 × 3,952.49
  4. Step 4: Simplify right side
    10,530.94x = 62,414,164.84
  5. Step 5: Solve for x
    x = 62,414,164.84/10,530.94
  6. Step 6: Final answer
    x = 5,926.74

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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.