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Finding the Third Proportional to 19,438,220 and 41,993,464

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Solution

The third proportional to 19,438,220 and 41,993,464 is: 90,720,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438,220 : 41,993,464 = 41,993,464 : x
  2. Step 2: Convert to fraction form
    19,438,220/41,993,464 = 41,993,464/x
  3. Step 3: Cross multiply
    19,438,220x = 41,993,464 × 41,993,464
  4. Step 4: Simplify right side
    19,438,220x = 1,763,451,018,719,296
  5. Step 5: Solve for x
    x = 1,763,451,018,719,296/19,438,220
  6. Step 6: Final answer
    x = 90,720,807.70

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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.