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Finding the Third Proportional to 4,476 and 9,618

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Solution

The third proportional to 4,476 and 9,618 is: 20,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,476 : 9,618 = 9,618 : x
  2. Step 2: Convert to fraction form
    4,476/9,618 = 9,618/x
  3. Step 3: Cross multiply
    4,476x = 9,618 × 9,618
  4. Step 4: Simplify right side
    4,476x = 92,505,924
  5. Step 5: Solve for x
    x = 92,505,924/4,476
  6. Step 6: Final answer
    x = 20,667.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.