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Finding the Third Proportional to 21,933,618.75 and 30,662,971.88

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Solution

The third proportional to 21,933,618.75 and 30,662,971.88 is: 42,866,517.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933,618.75 : 30,662,971.88 = 30,662,971.88 : x
  2. Step 2: Convert to fraction form
    21,933,618.75/30,662,971.88 = 30,662,971.88/x
  3. Step 3: Cross multiply
    21,933,618.75x = 30,662,971.88 × 30,662,971.88
  4. Step 4: Simplify right side
    21,933,618.75x = 940,217,844,207,041
  5. Step 5: Solve for x
    x = 940,217,844,207,041/21,933,618.75
  6. Step 6: Final answer
    x = 42,866,517.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.