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Finding the Fourth Proportional to 21,923.03, 32,896.80 and 8,776.41

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Solution

The fourth proportional to 21,923.03, 32,896.80 and 8,776.41 is: 13,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.03 : 32,896.80 = 8,776.41 : x
  2. Step 2: Convert to fraction form
    21,923.03/32,896.80 = 8,776.41/x
  3. Step 3: Cross multiply
    21,923.03x = 32,896.80 × 8,776.41
  4. Step 4: Simplify right side
    21,923.03x = 288,715,804.49
  5. Step 5: Solve for x
    x = 288,715,804.49/21,923.03
  6. Step 6: Final answer
    x = 13,169.52

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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.