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Finding the Fourth Proportional to 56,564.53, 84,847.88 and 17,121.49

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Solution

The fourth proportional to 56,564.53, 84,847.88 and 17,121.49 is: 25,682.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,564.53 : 84,847.88 = 17,121.49 : x
  2. Step 2: Convert to fraction form
    56,564.53/84,847.88 = 17,121.49/x
  3. Step 3: Cross multiply
    56,564.53x = 84,847.88 × 17,121.49
  4. Step 4: Simplify right side
    56,564.53x = 1,452,722,128.94
  5. Step 5: Solve for x
    x = 1,452,722,128.94/56,564.53
  6. Step 6: Final answer
    x = 25,682.56

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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.