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Finding the Fourth Proportional to 65,876.46, 90,908.98 and 35,661.17

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Solution

The fourth proportional to 65,876.46, 90,908.98 and 35,661.17 is: 49,212.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,876.46 : 90,908.98 = 35,661.17 : x
  2. Step 2: Convert to fraction form
    65,876.46/90,908.98 = 35,661.17/x
  3. Step 3: Cross multiply
    65,876.46x = 90,908.98 × 35,661.17
  4. Step 4: Simplify right side
    65,876.46x = 3,241,920,046.61
  5. Step 5: Solve for x
    x = 3,241,920,046.61/65,876.46
  6. Step 6: Final answer
    x = 49,212.12

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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.