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Finding the Fourth Proportional to 36,871.89, 55,308.02 and 9,169.89

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Solution

The fourth proportional to 36,871.89, 55,308.02 and 9,169.89 is: 13,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,871.89 : 55,308.02 = 9,169.89 : x
  2. Step 2: Convert to fraction form
    36,871.89/55,308.02 = 9,169.89/x
  3. Step 3: Cross multiply
    36,871.89x = 55,308.02 × 9,169.89
  4. Step 4: Simplify right side
    36,871.89x = 507,168,413.67
  5. Step 5: Solve for x
    x = 507,168,413.67/36,871.89
  6. Step 6: Final answer
    x = 13,754.88

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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.