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Finding the Third Proportional to 66,416 and 99,896

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Solution

The third proportional to 66,416 and 99,896 is: 150,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,416 : 99,896 = 99,896 : x
  2. Step 2: Convert to fraction form
    66,416/99,896 = 99,896/x
  3. Step 3: Cross multiply
    66,416x = 99,896 × 99,896
  4. Step 4: Simplify right side
    66,416x = 9,979,210,816
  5. Step 5: Solve for x
    x = 9,979,210,816/66,416
  6. Step 6: Final answer
    x = 150,253.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.