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Finding the Third Proportional to 19,316,712 and 40,936,320

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Solution

The third proportional to 19,316,712 and 40,936,320 is: 86,752,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316,712 : 40,936,320 = 40,936,320 : x
  2. Step 2: Convert to fraction form
    19,316,712/40,936,320 = 40,936,320/x
  3. Step 3: Cross multiply
    19,316,712x = 40,936,320 × 40,936,320
  4. Step 4: Simplify right side
    19,316,712x = 1,675,782,295,142,400
  5. Step 5: Solve for x
    x = 1,675,782,295,142,400/19,316,712
  6. Step 6: Final answer
    x = 86,752,978.21

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.