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Finding the Fourth Proportional to 11,373.33, 17,034.61 and 8,721.31

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Solution

The fourth proportional to 11,373.33, 17,034.61 and 8,721.31 is: 13,062.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,373.33 : 17,034.61 = 8,721.31 : x
  2. Step 2: Convert to fraction form
    11,373.33/17,034.61 = 8,721.31/x
  3. Step 3: Cross multiply
    11,373.33x = 17,034.61 × 8,721.31
  4. Step 4: Simplify right side
    11,373.33x = 148,564,029.37
  5. Step 5: Solve for x
    x = 148,564,029.37/11,373.33
  6. Step 6: Final answer
    x = 13,062.49

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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.