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Finding the Fourth Proportional to 21,401.57, 32,104.52 and 7,362.74

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Solution

The fourth proportional to 21,401.57, 32,104.52 and 7,362.74 is: 11,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.57 : 32,104.52 = 7,362.74 : x
  2. Step 2: Convert to fraction form
    21,401.57/32,104.52 = 7,362.74/x
  3. Step 3: Cross multiply
    21,401.57x = 32,104.52 × 7,362.74
  4. Step 4: Simplify right side
    21,401.57x = 236,377,233.58
  5. Step 5: Solve for x
    x = 236,377,233.58/21,401.57
  6. Step 6: Final answer
    x = 11,044.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.