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Finding the Fourth Proportional to 21,375.29, 32,063.38 and 7,335.25

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Solution

The fourth proportional to 21,375.29, 32,063.38 and 7,335.25 is: 11,003.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.29 : 32,063.38 = 7,335.25 : x
  2. Step 2: Convert to fraction form
    21,375.29/32,063.38 = 7,335.25/x
  3. Step 3: Cross multiply
    21,375.29x = 32,063.38 × 7,335.25
  4. Step 4: Simplify right side
    21,375.29x = 235,192,809.65
  5. Step 5: Solve for x
    x = 235,192,809.65/21,375.29
  6. Step 6: Final answer
    x = 11,003.02

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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.