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Finding the Fourth Proportional to 17,963.40, 26,932.30 and 6,865.80

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Solution

The fourth proportional to 17,963.40, 26,932.30 and 6,865.80 is: 10,293.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963.40 : 26,932.30 = 6,865.80 : x
  2. Step 2: Convert to fraction form
    17,963.40/26,932.30 = 6,865.80/x
  3. Step 3: Cross multiply
    17,963.40x = 26,932.30 × 6,865.80
  4. Step 4: Simplify right side
    17,963.40x = 184,911,785.34
  5. Step 5: Solve for x
    x = 184,911,785.34/17,963.40
  6. Step 6: Final answer
    x = 10,293.81

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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.