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Finding the Third Proportional to 13,291,736.63 and 19,915,431.19

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Solution

The third proportional to 13,291,736.63 and 19,915,431.19 is: 29,839,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,736.63 : 19,915,431.19 = 19,915,431.19 : x
  2. Step 2: Convert to fraction form
    13,291,736.63/19,915,431.19 = 19,915,431.19/x
  3. Step 3: Cross multiply
    13,291,736.63x = 19,915,431.19 × 19,915,431.19
  4. Step 4: Simplify right side
    13,291,736.63x = 396,624,399,384,047.69
  5. Step 5: Solve for x
    x = 396,624,399,384,047.69/13,291,736.63
  6. Step 6: Final answer
    x = 29,839,923.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.