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Finding the Fourth Proportional to 64,660.73, 96,991.14 and 17,913.61

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Solution

The fourth proportional to 64,660.73, 96,991.14 and 17,913.61 is: 26,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.73 : 96,991.14 = 17,913.61 : x
  2. Step 2: Convert to fraction form
    64,660.73/96,991.14 = 17,913.61/x
  3. Step 3: Cross multiply
    64,660.73x = 96,991.14 × 17,913.61
  4. Step 4: Simplify right side
    64,660.73x = 1,737,461,212.94
  5. Step 5: Solve for x
    x = 1,737,461,212.94/64,660.73
  6. Step 6: Final answer
    x = 26,870.42

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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.