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Finding the Fourth Proportional to 7,937.19, 11,908.11 and 3,553.64

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Solution

The fourth proportional to 7,937.19, 11,908.11 and 3,553.64 is: 5,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.19 : 11,908.11 = 3,553.64 : x
  2. Step 2: Convert to fraction form
    7,937.19/11,908.11 = 3,553.64/x
  3. Step 3: Cross multiply
    7,937.19x = 11,908.11 × 3,553.64
  4. Step 4: Simplify right side
    7,937.19x = 42,317,076.48
  5. Step 5: Solve for x
    x = 42,317,076.48/7,937.19
  6. Step 6: Final answer
    x = 5,331.49

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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.