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Finding the Fourth Proportional to 63,578.04, 87,717.42 and 36,717

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Solution

The fourth proportional to 63,578.04, 87,717.42 and 36,717 is: 50,657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,578.04 : 87,717.42 = 36,717 : x
  2. Step 2: Convert to fraction form
    63,578.04/87,717.42 = 36,717/x
  3. Step 3: Cross multiply
    63,578.04x = 87,717.42 × 36,717
  4. Step 4: Simplify right side
    63,578.04x = 3,220,720,510.14
  5. Step 5: Solve for x
    x = 3,220,720,510.14/63,578.04
  6. Step 6: Final answer
    x = 50,657.75

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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.