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Finding the Fourth Proportional to 66,252, 91,428.24 and 36,444

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Solution

The fourth proportional to 66,252, 91,428.24 and 36,444 is: 50,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,252 : 91,428.24 = 36,444 : x
  2. Step 2: Convert to fraction form
    66,252/91,428.24 = 36,444/x
  3. Step 3: Cross multiply
    66,252x = 91,428.24 × 36,444
  4. Step 4: Simplify right side
    66,252x = 3,332,010,778.56
  5. Step 5: Solve for x
    x = 3,332,010,778.56/66,252
  6. Step 6: Final answer
    x = 50,292.98

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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.