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Finding the Third Proportional to 9,160,946 and 19,900,420

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Solution

The third proportional to 9,160,946 and 19,900,420 is: 43,229,893.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160,946 : 19,900,420 = 19,900,420 : x
  2. Step 2: Convert to fraction form
    9,160,946/19,900,420 = 19,900,420/x
  3. Step 3: Cross multiply
    9,160,946x = 19,900,420 × 19,900,420
  4. Step 4: Simplify right side
    9,160,946x = 396,026,716,176,400
  5. Step 5: Solve for x
    x = 396,026,716,176,400/9,160,946
  6. Step 6: Final answer
    x = 43,229,893.09

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.