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Finding the Fourth Proportional to 66,575.14, 91,874.30 and 37,893.38

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Solution

The fourth proportional to 66,575.14, 91,874.30 and 37,893.38 is: 52,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.14 : 91,874.30 = 37,893.38 : x
  2. Step 2: Convert to fraction form
    66,575.14/91,874.30 = 37,893.38/x
  3. Step 3: Cross multiply
    66,575.14x = 91,874.30 × 37,893.38
  4. Step 4: Simplify right side
    66,575.14x = 3,481,427,762.13
  5. Step 5: Solve for x
    x = 3,481,427,762.13/66,575.14
  6. Step 6: Final answer
    x = 52,293.21

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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.