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Finding the Fourth Proportional to 15,122.46, 22,669.11 and 7,327.02

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Solution

The fourth proportional to 15,122.46, 22,669.11 and 7,327.02 is: 10,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.46 : 22,669.11 = 7,327.02 : x
  2. Step 2: Convert to fraction form
    15,122.46/22,669.11 = 7,327.02/x
  3. Step 3: Cross multiply
    15,122.46x = 22,669.11 × 7,327.02
  4. Step 4: Simplify right side
    15,122.46x = 166,097,022.35
  5. Step 5: Solve for x
    x = 166,097,022.35/15,122.46
  6. Step 6: Final answer
    x = 10,983.47

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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.