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Finding the Fourth Proportional to 66,915.72, 92,383.74 and 41,799.24

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Solution

The fourth proportional to 66,915.72, 92,383.74 and 41,799.24 is: 57,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.72 : 92,383.74 = 41,799.24 : x
  2. Step 2: Convert to fraction form
    66,915.72/92,383.74 = 41,799.24/x
  3. Step 3: Cross multiply
    66,915.72x = 92,383.74 × 41,799.24
  4. Step 4: Simplify right side
    66,915.72x = 3,861,570,120.36
  5. Step 5: Solve for x
    x = 3,861,570,120.36/66,915.72
  6. Step 6: Final answer
    x = 57,707.97

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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.