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Finding the Fourth Proportional to 66,466.72, 91,724.20 and 36,252.08

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Solution

The fourth proportional to 66,466.72, 91,724.20 and 36,252.08 is: 50,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,466.72 : 91,724.20 = 36,252.08 : x
  2. Step 2: Convert to fraction form
    66,466.72/91,724.20 = 36,252.08/x
  3. Step 3: Cross multiply
    66,466.72x = 91,724.20 × 36,252.08
  4. Step 4: Simplify right side
    66,466.72x = 3,325,193,036.34
  5. Step 5: Solve for x
    x = 3,325,193,036.34/66,466.72
  6. Step 6: Final answer
    x = 50,027.94

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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.