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Finding the Fourth Proportional to 65,995.74, 91,073.79 and 35,780.94

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Solution

The fourth proportional to 65,995.74, 91,073.79 and 35,780.94 is: 49,377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,995.74 : 91,073.79 = 35,780.94 : x
  2. Step 2: Convert to fraction form
    65,995.74/91,073.79 = 35,780.94/x
  3. Step 3: Cross multiply
    65,995.74x = 91,073.79 × 35,780.94
  4. Step 4: Simplify right side
    65,995.74x = 3,258,705,815.56
  5. Step 5: Solve for x
    x = 3,258,705,815.56/65,995.74
  6. Step 6: Final answer
    x = 49,377.52

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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.