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Finding the Fourth Proportional to 65,645.66, 90,591.27 and 37,350.74

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Solution

The fourth proportional to 65,645.66, 90,591.27 and 37,350.74 is: 51,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,645.66 : 90,591.27 = 37,350.74 : x
  2. Step 2: Convert to fraction form
    65,645.66/90,591.27 = 37,350.74/x
  3. Step 3: Cross multiply
    65,645.66x = 90,591.27 × 37,350.74
  4. Step 4: Simplify right side
    65,645.66x = 3,383,650,972.04
  5. Step 5: Solve for x
    x = 3,383,650,972.04/65,645.66
  6. Step 6: Final answer
    x = 51,544.17

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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.