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Finding the Fourth Proportional to 7,963.37, 10,992.43 and 5,979.66

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Solution

The fourth proportional to 7,963.37, 10,992.43 and 5,979.66 is: 8,254.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.37 : 10,992.43 = 5,979.66 : x
  2. Step 2: Convert to fraction form
    7,963.37/10,992.43 = 5,979.66/x
  3. Step 3: Cross multiply
    7,963.37x = 10,992.43 × 5,979.66
  4. Step 4: Simplify right side
    7,963.37x = 65,730,960.23
  5. Step 5: Solve for x
    x = 65,730,960.23/7,963.37
  6. Step 6: Final answer
    x = 8,254.17

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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.