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Finding the Fourth Proportional to 36,579.75, 54,869.76 and 8,877.75

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Solution

The fourth proportional to 36,579.75, 54,869.76 and 8,877.75 is: 13,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,579.75 : 54,869.76 = 8,877.75 : x
  2. Step 2: Convert to fraction form
    36,579.75/54,869.76 = 8,877.75/x
  3. Step 3: Cross multiply
    36,579.75x = 54,869.76 × 8,877.75
  4. Step 4: Simplify right side
    36,579.75x = 487,120,011.84
  5. Step 5: Solve for x
    x = 487,120,011.84/36,579.75
  6. Step 6: Final answer
    x = 13,316.66

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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.