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Finding the Third Proportional to 4,042.88 and 6,172.31

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Solution

The third proportional to 4,042.88 and 6,172.31 is: 9,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.88 : 6,172.31 = 6,172.31 : x
  2. Step 2: Convert to fraction form
    4,042.88/6,172.31 = 6,172.31/x
  3. Step 3: Cross multiply
    4,042.88x = 6,172.31 × 6,172.31
  4. Step 4: Simplify right side
    4,042.88x = 38,097,441.60
  5. Step 5: Solve for x
    x = 38,097,441.60/4,042.88
  6. Step 6: Final answer
    x = 9,423.35

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.