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Finding the Third Proportional to 5,243 and 7,000

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Solution

The third proportional to 5,243 and 7,000 is: 9,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243 : 7,000 = 7,000 : x
  2. Step 2: Convert to fraction form
    5,243/7,000 = 7,000/x
  3. Step 3: Cross multiply
    5,243x = 7,000 × 7,000
  4. Step 4: Simplify right side
    5,243x = 49,000,000
  5. Step 5: Solve for x
    x = 49,000,000/5,243
  6. Step 6: Final answer
    x = 9,345.79

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.