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Finding the Fourth Proportional to 13,326.73, 20,008.53 and 6,757.50

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Solution

The fourth proportional to 13,326.73, 20,008.53 and 6,757.50 is: 10,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.73 : 20,008.53 = 6,757.50 : x
  2. Step 2: Convert to fraction form
    13,326.73/20,008.53 = 6,757.50/x
  3. Step 3: Cross multiply
    13,326.73x = 20,008.53 × 6,757.50
  4. Step 4: Simplify right side
    13,326.73x = 135,207,641.48
  5. Step 5: Solve for x
    x = 135,207,641.48/13,326.73
  6. Step 6: Final answer
    x = 10,145.60

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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.