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Finding the Third Proportional to 19,246.50 and 39,816

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Solution

The third proportional to 19,246.50 and 39,816 is: 82,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.50 : 39,816 = 39,816 : x
  2. Step 2: Convert to fraction form
    19,246.50/39,816 = 39,816/x
  3. Step 3: Cross multiply
    19,246.50x = 39,816 × 39,816
  4. Step 4: Simplify right side
    19,246.50x = 1,585,313,856
  5. Step 5: Solve for x
    x = 1,585,313,856/19,246.50
  6. Step 6: Final answer
    x = 82,368.94

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.