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Finding the Third Proportional to 1,962 and 3,618

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Solution

The third proportional to 1,962 and 3,618 is: 6,671.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962 : 3,618 = 3,618 : x
  2. Step 2: Convert to fraction form
    1,962/3,618 = 3,618/x
  3. Step 3: Cross multiply
    1,962x = 3,618 × 3,618
  4. Step 4: Simplify right side
    1,962x = 13,089,924
  5. Step 5: Solve for x
    x = 13,089,924/1,962
  6. Step 6: Final answer
    x = 6,671.72

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.