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Finding the Fourth Proportional to 65,763.64, 90,753.64 and 37,469.53

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Solution

The fourth proportional to 65,763.64, 90,753.64 and 37,469.53 is: 51,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,763.64 : 90,753.64 = 37,469.53 : x
  2. Step 2: Convert to fraction form
    65,763.64/90,753.64 = 37,469.53/x
  3. Step 3: Cross multiply
    65,763.64x = 90,753.64 × 37,469.53
  4. Step 4: Simplify right side
    65,763.64x = 3,400,496,236.59
  5. Step 5: Solve for x
    x = 3,400,496,236.59/65,763.64
  6. Step 6: Final answer
    x = 51,707.85

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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.