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Finding the Fourth Proportional to 66,482.22, 91,747.77 and 36,269.20

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Solution

The fourth proportional to 66,482.22, 91,747.77 and 36,269.20 is: 50,052.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,482.22 : 91,747.77 = 36,269.20 : x
  2. Step 2: Convert to fraction form
    66,482.22/91,747.77 = 36,269.20/x
  3. Step 3: Cross multiply
    66,482.22x = 91,747.77 × 36,269.20
  4. Step 4: Simplify right side
    66,482.22x = 3,327,617,712.09
  5. Step 5: Solve for x
    x = 3,327,617,712.09/66,482.22
  6. Step 6: Final answer
    x = 50,052.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.