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Finding the Fourth Proportional to 11,963.52, 17,937.60 and 5,720.16

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Solution

The fourth proportional to 11,963.52, 17,937.60 and 5,720.16 is: 8,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.52 : 17,937.60 = 5,720.16 : x
  2. Step 2: Convert to fraction form
    11,963.52/17,937.60 = 5,720.16/x
  3. Step 3: Cross multiply
    11,963.52x = 17,937.60 × 5,720.16
  4. Step 4: Simplify right side
    11,963.52x = 102,605,942.02
  5. Step 5: Solve for x
    x = 102,605,942.02/11,963.52
  6. Step 6: Final answer
    x = 8,576.57

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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.