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Finding the Third Proportional to 4,159,890 and 9,113,904

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Solution

The third proportional to 4,159,890 and 9,113,904 is: 19,967,654.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159,890 : 9,113,904 = 9,113,904 : x
  2. Step 2: Convert to fraction form
    4,159,890/9,113,904 = 9,113,904/x
  3. Step 3: Cross multiply
    4,159,890x = 9,113,904 × 9,113,904
  4. Step 4: Simplify right side
    4,159,890x = 83,063,246,121,216
  5. Step 5: Solve for x
    x = 83,063,246,121,216/4,159,890
  6. Step 6: Final answer
    x = 19,967,654.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.