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Finding the Third Proportional to 8,759.81 and 19,218.94

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Solution

The third proportional to 8,759.81 and 19,218.94 is: 42,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.81 : 19,218.94 = 19,218.94 : x
  2. Step 2: Convert to fraction form
    8,759.81/19,218.94 = 19,218.94/x
  3. Step 3: Cross multiply
    8,759.81x = 19,218.94 × 19,218.94
  4. Step 4: Simplify right side
    8,759.81x = 369,367,558.63
  5. Step 5: Solve for x
    x = 369,367,558.63/8,759.81
  6. Step 6: Final answer
    x = 42,166.15

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.