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Finding the Third Proportional to 19,387,491 and 40,780,614

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Solution

The third proportional to 19,387,491 and 40,780,614 is: 85,779,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387,491 : 40,780,614 = 40,780,614 : x
  2. Step 2: Convert to fraction form
    19,387,491/40,780,614 = 40,780,614/x
  3. Step 3: Cross multiply
    19,387,491x = 40,780,614 × 40,780,614
  4. Step 4: Simplify right side
    19,387,491x = 1,663,058,478,216,996
  5. Step 5: Solve for x
    x = 1,663,058,478,216,996/19,387,491
  6. Step 6: Final answer
    x = 85,779,974.22

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.