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Finding the Fourth Proportional to 16,553.05, 22,843.66 and 8,999.89

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Solution

The fourth proportional to 16,553.05, 22,843.66 and 8,999.89 is: 12,420.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,553.05 : 22,843.66 = 8,999.89 : x
  2. Step 2: Convert to fraction form
    16,553.05/22,843.66 = 8,999.89/x
  3. Step 3: Cross multiply
    16,553.05x = 22,843.66 × 8,999.89
  4. Step 4: Simplify right side
    16,553.05x = 205,590,347.59
  5. Step 5: Solve for x
    x = 205,590,347.59/16,553.05
  6. Step 6: Final answer
    x = 12,420.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.