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Finding the Third Proportional to 8,564.06 and 18,400.50

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Solution

The third proportional to 8,564.06 and 18,400.50 is: 39,534.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.06 : 18,400.50 = 18,400.50 : x
  2. Step 2: Convert to fraction form
    8,564.06/18,400.50 = 18,400.50/x
  3. Step 3: Cross multiply
    8,564.06x = 18,400.50 × 18,400.50
  4. Step 4: Simplify right side
    8,564.06x = 338,578,400.25
  5. Step 5: Solve for x
    x = 338,578,400.25/8,564.06
  6. Step 6: Final answer
    x = 39,534.79

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.