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Finding the Fourth Proportional to 14,353.53, 21,530.27 and 3,965.25

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Solution

The fourth proportional to 14,353.53, 21,530.27 and 3,965.25 is: 5,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.53 : 21,530.27 = 3,965.25 : x
  2. Step 2: Convert to fraction form
    14,353.53/21,530.27 = 3,965.25/x
  3. Step 3: Cross multiply
    14,353.53x = 21,530.27 × 3,965.25
  4. Step 4: Simplify right side
    14,353.53x = 85,372,883.29
  5. Step 5: Solve for x
    x = 85,372,883.29/14,353.53
  6. Step 6: Final answer
    x = 5,947.87

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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.