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Finding the Third Proportional to 4,984 and 7,950

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Solution

The third proportional to 4,984 and 7,950 is: 12,681.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,984 : 7,950 = 7,950 : x
  2. Step 2: Convert to fraction form
    4,984/7,950 = 7,950/x
  3. Step 3: Cross multiply
    4,984x = 7,950 × 7,950
  4. Step 4: Simplify right side
    4,984x = 63,202,500
  5. Step 5: Solve for x
    x = 63,202,500/4,984
  6. Step 6: Final answer
    x = 12,681.08

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.