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Finding the Fourth Proportional to 65,512.66, 90,409.89 and 37,223.14

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Solution

The fourth proportional to 65,512.66, 90,409.89 and 37,223.14 is: 51,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,512.66 : 90,409.89 = 37,223.14 : x
  2. Step 2: Convert to fraction form
    65,512.66/90,409.89 = 37,223.14/x
  3. Step 3: Cross multiply
    65,512.66x = 90,409.89 × 37,223.14
  4. Step 4: Simplify right side
    65,512.66x = 3,365,339,992.85
  5. Step 5: Solve for x
    x = 3,365,339,992.85/65,512.66
  6. Step 6: Final answer
    x = 51,369.31

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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.