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Finding the Fourth Proportional to 11,728.72, 17,593.10 and 2,963.64

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Solution

The fourth proportional to 11,728.72, 17,593.10 and 2,963.64 is: 4,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.72 : 17,593.10 = 2,963.64 : x
  2. Step 2: Convert to fraction form
    11,728.72/17,593.10 = 2,963.64/x
  3. Step 3: Cross multiply
    11,728.72x = 17,593.10 × 2,963.64
  4. Step 4: Simplify right side
    11,728.72x = 52,139,578.19
  5. Step 5: Solve for x
    x = 52,139,578.19/11,728.72
  6. Step 6: Final answer
    x = 4,445.46

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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.