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Finding the Fourth Proportional to 14,863.42, 20,474.34 and 11,320.48

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Solution

The fourth proportional to 14,863.42, 20,474.34 and 11,320.48 is: 15,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.42 : 20,474.34 = 11,320.48 : x
  2. Step 2: Convert to fraction form
    14,863.42/20,474.34 = 11,320.48/x
  3. Step 3: Cross multiply
    14,863.42x = 20,474.34 × 11,320.48
  4. Step 4: Simplify right side
    14,863.42x = 231,779,356.48
  5. Step 5: Solve for x
    x = 231,779,356.48/14,863.42
  6. Step 6: Final answer
    x = 15,593.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.