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Finding the Fourth Proportional to 66,252.93, 91,431.41 and 37,964.08

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Solution

The fourth proportional to 66,252.93, 91,431.41 and 37,964.08 is: 52,391.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,252.93 : 91,431.41 = 37,964.08 : x
  2. Step 2: Convert to fraction form
    66,252.93/91,431.41 = 37,964.08/x
  3. Step 3: Cross multiply
    66,252.93x = 91,431.41 × 37,964.08
  4. Step 4: Simplify right side
    66,252.93x = 3,471,109,363.75
  5. Step 5: Solve for x
    x = 3,471,109,363.75/66,252.93
  6. Step 6: Final answer
    x = 52,391.79

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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.