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Finding the Third Proportional to 9,369,928.13 and 14,172,990.19

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Solution

The third proportional to 9,369,928.13 and 14,172,990.19 is: 21,438,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369,928.13 : 14,172,990.19 = 14,172,990.19 : x
  2. Step 2: Convert to fraction form
    9,369,928.13/14,172,990.19 = 14,172,990.19/x
  3. Step 3: Cross multiply
    9,369,928.13x = 14,172,990.19 × 14,172,990.19
  4. Step 4: Simplify right side
    9,369,928.13x = 200,873,650,854,971.28
  5. Step 5: Solve for x
    x = 200,873,650,854,971.28/9,369,928.13
  6. Step 6: Final answer
    x = 21,438,120.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.