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Finding the Third Proportional to 11,368 and 19,928

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Solution

The third proportional to 11,368 and 19,928 is: 34,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368 : 19,928 = 19,928 : x
  2. Step 2: Convert to fraction form
    11,368/19,928 = 19,928/x
  3. Step 3: Cross multiply
    11,368x = 19,928 × 19,928
  4. Step 4: Simplify right side
    11,368x = 397,125,184
  5. Step 5: Solve for x
    x = 397,125,184/11,368
  6. Step 6: Final answer
    x = 34,933.60

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.