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Finding the Third Proportional to 4,174,400.81 and 8,979,867.56

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Solution

The third proportional to 4,174,400.81 and 8,979,867.56 is: 19,317,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,174,400.81 : 8,979,867.56 = 8,979,867.56 : x
  2. Step 2: Convert to fraction form
    4,174,400.81/8,979,867.56 = 8,979,867.56/x
  3. Step 3: Cross multiply
    4,174,400.81x = 8,979,867.56 × 8,979,867.56
  4. Step 4: Simplify right side
    4,174,400.81x = 80,638,021,440,039.69
  5. Step 5: Solve for x
    x = 80,638,021,440,039.69/4,174,400.81
  6. Step 6: Final answer
    x = 19,317,268.53

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.