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Finding the Fourth Proportional to 66,422.70, 99,682.65 and 44,228.70

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Solution

The fourth proportional to 66,422.70, 99,682.65 and 44,228.70 is: 66,375.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422.70 : 99,682.65 = 44,228.70 : x
  2. Step 2: Convert to fraction form
    66,422.70/99,682.65 = 44,228.70/x
  3. Step 3: Cross multiply
    66,422.70x = 99,682.65 × 44,228.70
  4. Step 4: Simplify right side
    66,422.70x = 4,408,834,022.06
  5. Step 5: Solve for x
    x = 4,408,834,022.06/66,422.70
  6. Step 6: Final answer
    x = 66,375.41

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1.5x scale

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.