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Finding the Fourth Proportional to 12,256.66, 16,917.20 and 6,954.58

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Solution

The fourth proportional to 12,256.66, 16,917.20 and 6,954.58 is: 9,599.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.66 : 16,917.20 = 6,954.58 : x
  2. Step 2: Convert to fraction form
    12,256.66/16,917.20 = 6,954.58/x
  3. Step 3: Cross multiply
    12,256.66x = 16,917.20 × 6,954.58
  4. Step 4: Simplify right side
    12,256.66x = 117,652,020.78
  5. Step 5: Solve for x
    x = 117,652,020.78/12,256.66
  6. Step 6: Final answer
    x = 9,599.03

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Why These Related Problems?

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