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Finding the Third Proportional to 19,985,272 and 43,001,728

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Solution

The third proportional to 19,985,272 and 43,001,728 is: 92,525,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985,272 : 43,001,728 = 43,001,728 : x
  2. Step 2: Convert to fraction form
    19,985,272/43,001,728 = 43,001,728/x
  3. Step 3: Cross multiply
    19,985,272x = 43,001,728 × 43,001,728
  4. Step 4: Simplify right side
    19,985,272x = 1,849,148,610,985,984
  5. Step 5: Solve for x
    x = 1,849,148,610,985,984/19,985,272
  6. Step 6: Final answer
    x = 92,525,566.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.