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Finding the Fourth Proportional to 64,011.69, 96,028.91 and 21,896.43

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Solution

The fourth proportional to 64,011.69, 96,028.91 and 21,896.43 is: 32,848.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,011.69 : 96,028.91 = 21,896.43 : x
  2. Step 2: Convert to fraction form
    64,011.69/96,028.91 = 21,896.43/x
  3. Step 3: Cross multiply
    64,011.69x = 96,028.91 × 21,896.43
  4. Step 4: Simplify right side
    64,011.69x = 2,102,690,196.31
  5. Step 5: Solve for x
    x = 2,102,690,196.31/64,011.69
  6. Step 6: Final answer
    x = 32,848.53

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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.