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Finding the Fourth Proportional to 16,788.98, 25,172.11 and 9,398.54

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Solution

The fourth proportional to 16,788.98, 25,172.11 and 9,398.54 is: 14,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,788.98 : 25,172.11 = 9,398.54 : x
  2. Step 2: Convert to fraction form
    16,788.98/25,172.11 = 9,398.54/x
  3. Step 3: Cross multiply
    16,788.98x = 25,172.11 × 9,398.54
  4. Step 4: Simplify right side
    16,788.98x = 236,581,082.72
  5. Step 5: Solve for x
    x = 236,581,082.72/16,788.98
  6. Step 6: Final answer
    x = 14,091.45

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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.