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Finding the Third Proportional to 19,315,978 and 40,934,623

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Solution

The third proportional to 19,315,978 and 40,934,623 is: 86,749,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,978 : 40,934,623 = 40,934,623 : x
  2. Step 2: Convert to fraction form
    19,315,978/40,934,623 = 40,934,623/x
  3. Step 3: Cross multiply
    19,315,978x = 40,934,623 × 40,934,623
  4. Step 4: Simplify right side
    19,315,978x = 1,675,643,360,152,129
  5. Step 5: Solve for x
    x = 1,675,643,360,152,129/19,315,978
  6. Step 6: Final answer
    x = 86,749,082.04

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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.