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Finding the Third Proportional to 21,387,721 and 46,184,517

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Solution

The third proportional to 21,387,721 and 46,184,517 is: 99,730,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,721 : 46,184,517 = 46,184,517 : x
  2. Step 2: Convert to fraction form
    21,387,721/46,184,517 = 46,184,517/x
  3. Step 3: Cross multiply
    21,387,721x = 46,184,517 × 46,184,517
  4. Step 4: Simplify right side
    21,387,721x = 2,133,009,610,523,289
  5. Step 5: Solve for x
    x = 2,133,009,610,523,289/21,387,721
  6. Step 6: Final answer
    x = 99,730,570.20

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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.