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Finding the Third Proportional to 4,335.19 and 8,908.31

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Solution

The third proportional to 4,335.19 and 8,908.31 is: 18,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,335.19 : 8,908.31 = 8,908.31 : x
  2. Step 2: Convert to fraction form
    4,335.19/8,908.31 = 8,908.31/x
  3. Step 3: Cross multiply
    4,335.19x = 8,908.31 × 8,908.31
  4. Step 4: Simplify right side
    4,335.19x = 79,358,031.60
  5. Step 5: Solve for x
    x = 79,358,031.60/4,335.19
  6. Step 6: Final answer
    x = 18,305.56

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.