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Finding the Third Proportional to 18,142,191 and 39,170,412

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Solution

The third proportional to 18,142,191 and 39,170,412 is: 84,571,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142,191 : 39,170,412 = 39,170,412 : x
  2. Step 2: Convert to fraction form
    18,142,191/39,170,412 = 39,170,412/x
  3. Step 3: Cross multiply
    18,142,191x = 39,170,412 × 39,170,412
  4. Step 4: Simplify right side
    18,142,191x = 1,534,321,176,249,744
  5. Step 5: Solve for x
    x = 1,534,321,176,249,744/18,142,191
  6. Step 6: Final answer
    x = 84,571,988.92

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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.