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Finding the Third Proportional to 18,888,207.75 and 39,119,233.50

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Solution

The third proportional to 18,888,207.75 and 39,119,233.50 is: 81,019,567.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,207.75 : 39,119,233.50 = 39,119,233.50 : x
  2. Step 2: Convert to fraction form
    18,888,207.75/39,119,233.50 = 39,119,233.50/x
  3. Step 3: Cross multiply
    18,888,207.75x = 39,119,233.50 × 39,119,233.50
  4. Step 4: Simplify right side
    18,888,207.75x = 1,530,314,429,627,522.25
  5. Step 5: Solve for x
    x = 1,530,314,429,627,522.25/18,888,207.75
  6. Step 6: Final answer
    x = 81,019,567.86

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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.