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Finding the Third Proportional to 4,768.88 and 7,031.81

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Solution

The third proportional to 4,768.88 and 7,031.81 is: 10,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,768.88 : 7,031.81 = 7,031.81 : x
  2. Step 2: Convert to fraction form
    4,768.88/7,031.81 = 7,031.81/x
  3. Step 3: Cross multiply
    4,768.88x = 7,031.81 × 7,031.81
  4. Step 4: Simplify right side
    4,768.88x = 49,446,387.04
  5. Step 5: Solve for x
    x = 49,446,387.04/4,768.88
  6. Step 6: Final answer
    x = 10,368.56

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.