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Finding the Third Proportional to 47,322 and 66,618

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Solution

The third proportional to 47,322 and 66,618 is: 93,782.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,322 : 66,618 = 66,618 : x
  2. Step 2: Convert to fraction form
    47,322/66,618 = 66,618/x
  3. Step 3: Cross multiply
    47,322x = 66,618 × 66,618
  4. Step 4: Simplify right side
    47,322x = 4,437,957,924
  5. Step 5: Solve for x
    x = 4,437,957,924/47,322
  6. Step 6: Final answer
    x = 93,782.13

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.