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Finding the Third Proportional to 4,117,320 and 9,072,288

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Solution

The third proportional to 4,117,320 and 9,072,288 is: 19,990,287.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117,320 : 9,072,288 = 9,072,288 : x
  2. Step 2: Convert to fraction form
    4,117,320/9,072,288 = 9,072,288/x
  3. Step 3: Cross multiply
    4,117,320x = 9,072,288 × 9,072,288
  4. Step 4: Simplify right side
    4,117,320x = 82,306,409,554,944
  5. Step 5: Solve for x
    x = 82,306,409,554,944/4,117,320
  6. Step 6: Final answer
    x = 19,990,287.26

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.