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Finding the Third Proportional to 2,930 and 4,557

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Solution

The third proportional to 2,930 and 4,557 is: 7,087.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930 : 4,557 = 4,557 : x
  2. Step 2: Convert to fraction form
    2,930/4,557 = 4,557/x
  3. Step 3: Cross multiply
    2,930x = 4,557 × 4,557
  4. Step 4: Simplify right side
    2,930x = 20,766,249
  5. Step 5: Solve for x
    x = 20,766,249/2,930
  6. Step 6: Final answer
    x = 7,087.46

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.