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Finding the Third Proportional to 28,400.63 and 43,967.81

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Solution

The third proportional to 28,400.63 and 43,967.81 is: 68,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.63 : 43,967.81 = 43,967.81 : x
  2. Step 2: Convert to fraction form
    28,400.63/43,967.81 = 43,967.81/x
  3. Step 3: Cross multiply
    28,400.63x = 43,967.81 × 43,967.81
  4. Step 4: Simplify right side
    28,400.63x = 1,933,168,536.04
  5. Step 5: Solve for x
    x = 1,933,168,536.04/28,400.63
  6. Step 6: Final answer
    x = 68,067.82

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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.