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Finding the Fourth Proportional to 22,029.96, 32,886.48 and 18,876

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Solution

The fourth proportional to 22,029.96, 32,886.48 and 18,876 is: 28,178.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,029.96 : 32,886.48 = 18,876 : x
  2. Step 2: Convert to fraction form
    22,029.96/32,886.48 = 18,876/x
  3. Step 3: Cross multiply
    22,029.96x = 32,886.48 × 18,876
  4. Step 4: Simplify right side
    22,029.96x = 620,765,196.48
  5. Step 5: Solve for x
    x = 620,765,196.48/22,029.96
  6. Step 6: Final answer
    x = 28,178.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.