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Finding the Fourth Proportional to 66,820.70, 100,233.47 and 22,448.90

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Solution

The fourth proportional to 66,820.70, 100,233.47 and 22,448.90 is: 33,674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,820.70 : 100,233.47 = 22,448.90 : x
  2. Step 2: Convert to fraction form
    66,820.70/100,233.47 = 22,448.90/x
  3. Step 3: Cross multiply
    66,820.70x = 100,233.47 × 22,448.90
  4. Step 4: Simplify right side
    66,820.70x = 2,250,131,144.68
  5. Step 5: Solve for x
    x = 2,250,131,144.68/66,820.70
  6. Step 6: Final answer
    x = 33,674.16

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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.