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Finding the Fourth Proportional to 66,056, 91,162.08 and 37,760.96

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Solution

The fourth proportional to 66,056, 91,162.08 and 37,760.96 is: 52,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,056 : 91,162.08 = 37,760.96 : x
  2. Step 2: Convert to fraction form
    66,056/91,162.08 = 37,760.96/x
  3. Step 3: Cross multiply
    66,056x = 91,162.08 × 37,760.96
  4. Step 4: Simplify right side
    66,056x = 3,442,367,656.40
  5. Step 5: Solve for x
    x = 3,442,367,656.40/66,056
  6. Step 6: Final answer
    x = 52,112.87

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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.