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Finding the Third Proportional to 44,142 and 66,618

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Solution

The third proportional to 44,142 and 66,618 is: 100,538.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,142 : 66,618 = 66,618 : x
  2. Step 2: Convert to fraction form
    44,142/66,618 = 66,618/x
  3. Step 3: Cross multiply
    44,142x = 66,618 × 66,618
  4. Step 4: Simplify right side
    44,142x = 4,437,957,924
  5. Step 5: Solve for x
    x = 4,437,957,924/44,142
  6. Step 6: Final answer
    x = 100,538.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.