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Finding the Third Proportional to 8,352,998.72 and 13,291,394.20

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Solution

The third proportional to 8,352,998.72 and 13,291,394.20 is: 21,149,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352,998.72 : 13,291,394.20 = 13,291,394.20 : x
  2. Step 2: Convert to fraction form
    8,352,998.72/13,291,394.20 = 13,291,394.20/x
  3. Step 3: Cross multiply
    8,352,998.72x = 13,291,394.20 × 13,291,394.20
  4. Step 4: Simplify right side
    8,352,998.72x = 176,661,159,862,864.84
  5. Step 5: Solve for x
    x = 176,661,159,862,864.84/8,352,998.72
  6. Step 6: Final answer
    x = 21,149,429.78

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.