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Finding the Fourth Proportional to 63,889.84, 95,845.92 and 21,767.68

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Solution

The fourth proportional to 63,889.84, 95,845.92 and 21,767.68 is: 32,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,889.84 : 95,845.92 = 21,767.68 : x
  2. Step 2: Convert to fraction form
    63,889.84/95,845.92 = 21,767.68/x
  3. Step 3: Cross multiply
    63,889.84x = 95,845.92 × 21,767.68
  4. Step 4: Simplify right side
    63,889.84x = 2,086,343,315.87
  5. Step 5: Solve for x
    x = 2,086,343,315.87/63,889.84
  6. Step 6: Final answer
    x = 32,655.32

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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.