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Finding the Fourth Proportional to 17,953.60, 26,876.52 and 10,911.88

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Solution

The fourth proportional to 17,953.60, 26,876.52 and 10,911.88 is: 16,335.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.60 : 26,876.52 = 10,911.88 : x
  2. Step 2: Convert to fraction form
    17,953.60/26,876.52 = 10,911.88/x
  3. Step 3: Cross multiply
    17,953.60x = 26,876.52 × 10,911.88
  4. Step 4: Simplify right side
    17,953.60x = 293,273,361.06
  5. Step 5: Solve for x
    x = 293,273,361.06/17,953.60
  6. Step 6: Final answer
    x = 16,335.07

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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.