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Finding the Fourth Proportional to 66,963.44, 100,445.15 and 52,183.41

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Solution

The fourth proportional to 66,963.44, 100,445.15 and 52,183.41 is: 78,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,963.44 : 100,445.15 = 52,183.41 : x
  2. Step 2: Convert to fraction form
    66,963.44/100,445.15 = 52,183.41/x
  3. Step 3: Cross multiply
    66,963.44x = 100,445.15 × 52,183.41
  4. Step 4: Simplify right side
    66,963.44x = 5,241,570,184.04
  5. Step 5: Solve for x
    x = 5,241,570,184.04/66,963.44
  6. Step 6: Final answer
    x = 78,275.11

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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.