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Finding the Fourth Proportional to 12,548.54, 18,824.86 and 5,151.02

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Solution

The fourth proportional to 12,548.54, 18,824.86 and 5,151.02 is: 7,727.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.54 : 18,824.86 = 5,151.02 : x
  2. Step 2: Convert to fraction form
    12,548.54/18,824.86 = 5,151.02/x
  3. Step 3: Cross multiply
    12,548.54x = 18,824.86 × 5,151.02
  4. Step 4: Simplify right side
    12,548.54x = 96,967,230.36
  5. Step 5: Solve for x
    x = 96,967,230.36/12,548.54
  6. Step 6: Final answer
    x = 7,727.37

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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.