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Finding the Fourth Proportional to 66,512.48, 91,787.28 and 36,704.48

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Solution

The fourth proportional to 66,512.48, 91,787.28 and 36,704.48 is: 50,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.48 : 91,787.28 = 36,704.48 : x
  2. Step 2: Convert to fraction form
    66,512.48/91,787.28 = 36,704.48/x
  3. Step 3: Cross multiply
    66,512.48x = 91,787.28 × 36,704.48
  4. Step 4: Simplify right side
    66,512.48x = 3,369,004,383.01
  5. Step 5: Solve for x
    x = 3,369,004,383.01/66,512.48
  6. Step 6: Final answer
    x = 50,652.21

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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.