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Finding the Third Proportional to 5,368 and 9,980

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Solution

The third proportional to 5,368 and 9,980 is: 18,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368 : 9,980 = 9,980 : x
  2. Step 2: Convert to fraction form
    5,368/9,980 = 9,980/x
  3. Step 3: Cross multiply
    5,368x = 9,980 × 9,980
  4. Step 4: Simplify right side
    5,368x = 99,600,400
  5. Step 5: Solve for x
    x = 99,600,400/5,368
  6. Step 6: Final answer
    x = 18,554.47

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These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.