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Finding the Third Proportional to 13,505,469.19 and 20,943,739.69

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Solution

The third proportional to 13,505,469.19 and 20,943,739.69 is: 32,478,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,469.19 : 20,943,739.69 = 20,943,739.69 : x
  2. Step 2: Convert to fraction form
    13,505,469.19/20,943,739.69 = 20,943,739.69/x
  3. Step 3: Cross multiply
    13,505,469.19x = 20,943,739.69 × 20,943,739.69
  4. Step 4: Simplify right side
    13,505,469.19x = 438,640,232,097,762.62
  5. Step 5: Solve for x
    x = 438,640,232,097,762.62/13,505,469.19
  6. Step 6: Final answer
    x = 32,478,711.11

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.