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Finding the Third Proportional to 20,402,486 and 43,107,640

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Solution

The third proportional to 20,402,486 and 43,107,640 is: 91,080,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,486 : 43,107,640 = 43,107,640 : x
  2. Step 2: Convert to fraction form
    20,402,486/43,107,640 = 43,107,640/x
  3. Step 3: Cross multiply
    20,402,486x = 43,107,640 × 43,107,640
  4. Step 4: Simplify right side
    20,402,486x = 1,858,268,626,369,600
  5. Step 5: Solve for x
    x = 1,858,268,626,369,600/20,402,486
  6. Step 6: Final answer
    x = 91,080,500.01

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.