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Finding the Third Proportional to 8,960 and 19,768

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Solution

The third proportional to 8,960 and 19,768 is: 43,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960 : 19,768 = 19,768 : x
  2. Step 2: Convert to fraction form
    8,960/19,768 = 19,768/x
  3. Step 3: Cross multiply
    8,960x = 19,768 × 19,768
  4. Step 4: Simplify right side
    8,960x = 390,773,824
  5. Step 5: Solve for x
    x = 390,773,824/8,960
  6. Step 6: Final answer
    x = 43,613.15

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.