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Finding the Fourth Proportional to 66,872.64, 92,268 and 37,064.64

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Solution

The fourth proportional to 66,872.64, 92,268 and 37,064.64 is: 51,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,872.64 : 92,268 = 37,064.64 : x
  2. Step 2: Convert to fraction form
    66,872.64/92,268 = 37,064.64/x
  3. Step 3: Cross multiply
    66,872.64x = 92,268 × 37,064.64
  4. Step 4: Simplify right side
    66,872.64x = 3,419,880,203.52
  5. Step 5: Solve for x
    x = 3,419,880,203.52/66,872.64
  6. Step 6: Final answer
    x = 51,140.20

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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.