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Finding the Fourth Proportional to 63,033.72, 94,569.12 and 18,661.66

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Solution

The fourth proportional to 63,033.72, 94,569.12 and 18,661.66 is: 27,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,033.72 : 94,569.12 = 18,661.66 : x
  2. Step 2: Convert to fraction form
    63,033.72/94,569.12 = 18,661.66/x
  3. Step 3: Cross multiply
    63,033.72x = 94,569.12 × 18,661.66
  4. Step 4: Simplify right side
    63,033.72x = 1,764,816,763.94
  5. Step 5: Solve for x
    x = 1,764,816,763.94/63,033.72
  6. Step 6: Final answer
    x = 27,997.98

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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.