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Finding the Fourth Proportional to 18,984.69, 28,481.06 and 6,501.36

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Solution

The fourth proportional to 18,984.69, 28,481.06 and 6,501.36 is: 9,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,984.69 : 28,481.06 = 6,501.36 : x
  2. Step 2: Convert to fraction form
    18,984.69/28,481.06 = 6,501.36/x
  3. Step 3: Cross multiply
    18,984.69x = 28,481.06 × 6,501.36
  4. Step 4: Simplify right side
    18,984.69x = 185,165,521.35
  5. Step 5: Solve for x
    x = 185,165,521.35/18,984.69
  6. Step 6: Final answer
    x = 9,753.42

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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.