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Finding the Fourth Proportional to 14,471.22, 21,709.08 and 5,112.48

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Solution

The fourth proportional to 14,471.22, 21,709.08 and 5,112.48 is: 7,669.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,471.22 : 21,709.08 = 5,112.48 : x
  2. Step 2: Convert to fraction form
    14,471.22/21,709.08 = 5,112.48/x
  3. Step 3: Cross multiply
    14,471.22x = 21,709.08 × 5,112.48
  4. Step 4: Simplify right side
    14,471.22x = 110,987,237.32
  5. Step 5: Solve for x
    x = 110,987,237.32/14,471.22
  6. Step 6: Final answer
    x = 7,669.51

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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.