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Finding the Fourth Proportional to 66,675.20, 92,019.20 and 48,761.60

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Solution

The fourth proportional to 66,675.20, 92,019.20 and 48,761.60 is: 67,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,675.20 : 92,019.20 = 48,761.60 : x
  2. Step 2: Convert to fraction form
    66,675.20/92,019.20 = 48,761.60/x
  3. Step 3: Cross multiply
    66,675.20x = 92,019.20 × 48,761.60
  4. Step 4: Simplify right side
    66,675.20x = 4,487,003,422.72
  5. Step 5: Solve for x
    x = 4,487,003,422.72/66,675.20
  6. Step 6: Final answer
    x = 67,296.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.