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Finding the Third Proportional to 6,557.20 and 13,995.28

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Solution

The third proportional to 6,557.20 and 13,995.28 is: 29,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,557.20 : 13,995.28 = 13,995.28 : x
  2. Step 2: Convert to fraction form
    6,557.20/13,995.28 = 13,995.28/x
  3. Step 3: Cross multiply
    6,557.20x = 13,995.28 × 13,995.28
  4. Step 4: Simplify right side
    6,557.20x = 195,867,897.27
  5. Step 5: Solve for x
    x = 195,867,897.27/6,557.20
  6. Step 6: Final answer
    x = 29,870.65

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.