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Finding the Third Proportional to 66,520.50 and 99,518.25

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Solution

The third proportional to 66,520.50 and 99,518.25 is: 148,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.50 : 99,518.25 = 99,518.25 : x
  2. Step 2: Convert to fraction form
    66,520.50/99,518.25 = 99,518.25/x
  3. Step 3: Cross multiply
    66,520.50x = 99,518.25 × 99,518.25
  4. Step 4: Simplify right side
    66,520.50x = 9,903,882,083.06
  5. Step 5: Solve for x
    x = 9,903,882,083.06/66,520.50
  6. Step 6: Final answer
    x = 148,884.66

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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.