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Finding the Third Proportional to 19,320.75 and 41,796

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Solution

The third proportional to 19,320.75 and 41,796 is: 90,416.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.75 : 41,796 = 41,796 : x
  2. Step 2: Convert to fraction form
    19,320.75/41,796 = 41,796/x
  3. Step 3: Cross multiply
    19,320.75x = 41,796 × 41,796
  4. Step 4: Simplify right side
    19,320.75x = 1,746,905,616
  5. Step 5: Solve for x
    x = 1,746,905,616/19,320.75
  6. Step 6: Final answer
    x = 90,416.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.