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Finding the Third Proportional to 66,019.50 and 134,370

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Solution

The third proportional to 66,019.50 and 134,370 is: 273,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,019.50 : 134,370 = 134,370 : x
  2. Step 2: Convert to fraction form
    66,019.50/134,370 = 134,370/x
  3. Step 3: Cross multiply
    66,019.50x = 134,370 × 134,370
  4. Step 4: Simplify right side
    66,019.50x = 18,055,296,900
  5. Step 5: Solve for x
    x = 18,055,296,900/66,019.50
  6. Step 6: Final answer
    x = 273,484.30

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.