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Finding the Third Proportional to 45,534 and 66,816

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Solution

The third proportional to 45,534 and 66,816 is: 98,044.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,534 : 66,816 = 66,816 : x
  2. Step 2: Convert to fraction form
    45,534/66,816 = 66,816/x
  3. Step 3: Cross multiply
    45,534x = 66,816 × 66,816
  4. Step 4: Simplify right side
    45,534x = 4,464,377,856
  5. Step 5: Solve for x
    x = 4,464,377,856/45,534
  6. Step 6: Final answer
    x = 98,044.93

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.