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Finding the Fourth Proportional to 14,955.42, 20,638.18 and 8,240.92

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Solution

The fourth proportional to 14,955.42, 20,638.18 and 8,240.92 is: 11,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.42 : 20,638.18 = 8,240.92 : x
  2. Step 2: Convert to fraction form
    14,955.42/20,638.18 = 8,240.92/x
  3. Step 3: Cross multiply
    14,955.42x = 20,638.18 × 8,240.92
  4. Step 4: Simplify right side
    14,955.42x = 170,077,590.33
  5. Step 5: Solve for x
    x = 170,077,590.33/14,955.42
  6. Step 6: Final answer
    x = 11,372.30

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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.