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Finding the Third Proportional to 2,973.47 and 6,403.69

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Solution

The third proportional to 2,973.47 and 6,403.69 is: 13,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.47 : 6,403.69 = 6,403.69 : x
  2. Step 2: Convert to fraction form
    2,973.47/6,403.69 = 6,403.69/x
  3. Step 3: Cross multiply
    2,973.47x = 6,403.69 × 6,403.69
  4. Step 4: Simplify right side
    2,973.47x = 41,007,213.60
  5. Step 5: Solve for x
    x = 41,007,213.60/2,973.47
  6. Step 6: Final answer
    x = 13,791.04

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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.