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Finding the Fourth Proportional to 36,641.75, 54,969.93 and 15,581.66

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Solution

The fourth proportional to 36,641.75, 54,969.93 and 15,581.66 is: 23,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,641.75 : 54,969.93 = 15,581.66 : x
  2. Step 2: Convert to fraction form
    36,641.75/54,969.93 = 15,581.66/x
  3. Step 3: Cross multiply
    36,641.75x = 54,969.93 × 15,581.66
  4. Step 4: Simplify right side
    36,641.75x = 856,522,484.63
  5. Step 5: Solve for x
    x = 856,522,484.63/36,641.75
  6. Step 6: Final answer
    x = 23,375.59

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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.