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Finding the Fourth Proportional to 12,469.74, 18,699.14 and 4,673.09

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Solution

The fourth proportional to 12,469.74, 18,699.14 and 4,673.09 is: 7,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.74 : 18,699.14 = 4,673.09 : x
  2. Step 2: Convert to fraction form
    12,469.74/18,699.14 = 4,673.09/x
  3. Step 3: Cross multiply
    12,469.74x = 18,699.14 × 4,673.09
  4. Step 4: Simplify right side
    12,469.74x = 87,382,647.28
  5. Step 5: Solve for x
    x = 87,382,647.28/12,469.74
  6. Step 6: Final answer
    x = 7,007.58

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1.5x scale

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.