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Finding the Fourth Proportional to 12,608.33, 18,904.93 and 5,208.44

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Solution

The fourth proportional to 12,608.33, 18,904.93 and 5,208.44 is: 7,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.33 : 18,904.93 = 5,208.44 : x
  2. Step 2: Convert to fraction form
    12,608.33/18,904.93 = 5,208.44/x
  3. Step 3: Cross multiply
    12,608.33x = 18,904.93 × 5,208.44
  4. Step 4: Simplify right side
    12,608.33x = 98,465,086.06
  5. Step 5: Solve for x
    x = 98,465,086.06/12,608.33
  6. Step 6: Final answer
    x = 7,809.53

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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.