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Finding the Third Proportional to 59,628 and 129,618

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Solution

The third proportional to 59,628 and 129,618 is: 281,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,628 : 129,618 = 129,618 : x
  2. Step 2: Convert to fraction form
    59,628/129,618 = 129,618/x
  3. Step 3: Cross multiply
    59,628x = 129,618 × 129,618
  4. Step 4: Simplify right side
    59,628x = 16,800,825,924
  5. Step 5: Solve for x
    x = 16,800,825,924/59,628
  6. Step 6: Final answer
    x = 281,760.68

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.