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Finding the Third Proportional to 48,618 and 64,617.75

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Solution

The third proportional to 48,618 and 64,617.75 is: 85,882.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,618 : 64,617.75 = 64,617.75 : x
  2. Step 2: Convert to fraction form
    48,618/64,617.75 = 64,617.75/x
  3. Step 3: Cross multiply
    48,618x = 64,617.75 × 64,617.75
  4. Step 4: Simplify right side
    48,618x = 4,175,453,615.06
  5. Step 5: Solve for x
    x = 4,175,453,615.06/48,618
  6. Step 6: Final answer
    x = 85,882.87

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.