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Finding the Fourth Proportional to 66,126.33, 91,254.99 and 35,911.91

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Solution

The fourth proportional to 66,126.33, 91,254.99 and 35,911.91 is: 49,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,126.33 : 91,254.99 = 35,911.91 : x
  2. Step 2: Convert to fraction form
    66,126.33/91,254.99 = 35,911.91/x
  3. Step 3: Cross multiply
    66,126.33x = 91,254.99 × 35,911.91
  4. Step 4: Simplify right side
    66,126.33x = 3,277,140,531.66
  5. Step 5: Solve for x
    x = 3,277,140,531.66/66,126.33
  6. Step 6: Final answer
    x = 49,558.78

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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.