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Finding the Third Proportional to 7,549 and 11,784

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Solution

The third proportional to 7,549 and 11,784 is: 18,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,549 : 11,784 = 11,784 : x
  2. Step 2: Convert to fraction form
    7,549/11,784 = 11,784/x
  3. Step 3: Cross multiply
    7,549x = 11,784 × 11,784
  4. Step 4: Simplify right side
    7,549x = 138,862,656
  5. Step 5: Solve for x
    x = 138,862,656/7,549
  6. Step 6: Final answer
    x = 18,394.84

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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.