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Finding the Fourth Proportional to 66,474.72, 91,735.24 and 36,260.08

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Solution

The fourth proportional to 66,474.72, 91,735.24 and 36,260.08 is: 50,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,474.72 : 91,735.24 = 36,260.08 : x
  2. Step 2: Convert to fraction form
    66,474.72/91,735.24 = 36,260.08/x
  3. Step 3: Cross multiply
    66,474.72x = 91,735.24 × 36,260.08
  4. Step 4: Simplify right side
    66,474.72x = 3,326,327,141.22
  5. Step 5: Solve for x
    x = 3,326,327,141.22/66,474.72
  6. Step 6: Final answer
    x = 50,038.98

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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.