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Finding the Fourth Proportional to 21,744.60, 32,621.09 and 9,264.39

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Solution

The fourth proportional to 21,744.60, 32,621.09 and 9,264.39 is: 13,898.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.60 : 32,621.09 = 9,264.39 : x
  2. Step 2: Convert to fraction form
    21,744.60/32,621.09 = 9,264.39/x
  3. Step 3: Cross multiply
    21,744.60x = 32,621.09 × 9,264.39
  4. Step 4: Simplify right side
    21,744.60x = 302,214,453.66
  5. Step 5: Solve for x
    x = 302,214,453.66/21,744.60
  6. Step 6: Final answer
    x = 13,898.37

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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.