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Finding the Fourth Proportional to 66,292.62, 99,305.90 and 32,911.72

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Solution

The fourth proportional to 66,292.62, 99,305.90 and 32,911.72 is: 49,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,292.62 : 99,305.90 = 32,911.72 : x
  2. Step 2: Convert to fraction form
    66,292.62/99,305.90 = 32,911.72/x
  3. Step 3: Cross multiply
    66,292.62x = 99,305.90 × 32,911.72
  4. Step 4: Simplify right side
    66,292.62x = 3,268,327,975.15
  5. Step 5: Solve for x
    x = 3,268,327,975.15/66,292.62
  6. Step 6: Final answer
    x = 49,301.54

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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.