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Finding the Fourth Proportional to 65,915.67, 98,853.31 and 23,790.61

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Solution

The fourth proportional to 65,915.67, 98,853.31 and 23,790.61 is: 35,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.67 : 98,853.31 = 23,790.61 : x
  2. Step 2: Convert to fraction form
    65,915.67/98,853.31 = 23,790.61/x
  3. Step 3: Cross multiply
    65,915.67x = 98,853.31 × 23,790.61
  4. Step 4: Simplify right side
    65,915.67x = 2,351,780,698.72
  5. Step 5: Solve for x
    x = 2,351,780,698.72/65,915.67
  6. Step 6: Final answer
    x = 35,678.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.