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Finding the Fourth Proportional to 14,821.68, 22,207.86 and 10,431.30

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Solution

The fourth proportional to 14,821.68, 22,207.86 and 10,431.30 is: 15,629.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.68 : 22,207.86 = 10,431.30 : x
  2. Step 2: Convert to fraction form
    14,821.68/22,207.86 = 10,431.30/x
  3. Step 3: Cross multiply
    14,821.68x = 22,207.86 × 10,431.30
  4. Step 4: Simplify right side
    14,821.68x = 231,656,850.02
  5. Step 5: Solve for x
    x = 231,656,850.02/14,821.68
  6. Step 6: Final answer
    x = 15,629.59

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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.