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Finding the Third Proportional to 4,691.25 and 7,070.63

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Solution

The third proportional to 4,691.25 and 7,070.63 is: 10,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.25 : 7,070.63 = 7,070.63 : x
  2. Step 2: Convert to fraction form
    4,691.25/7,070.63 = 7,070.63/x
  3. Step 3: Cross multiply
    4,691.25x = 7,070.63 × 7,070.63
  4. Step 4: Simplify right side
    4,691.25x = 49,993,737.89
  5. Step 5: Solve for x
    x = 49,993,737.89/4,691.25
  6. Step 6: Final answer
    x = 10,656.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.