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Finding the Fourth Proportional to 7,992.77, 11,031.09 and 4,591.12

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Solution

The fourth proportional to 7,992.77, 11,031.09 and 4,591.12 is: 6,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.77 : 11,031.09 = 4,591.12 : x
  2. Step 2: Convert to fraction form
    7,992.77/11,031.09 = 4,591.12/x
  3. Step 3: Cross multiply
    7,992.77x = 11,031.09 × 4,591.12
  4. Step 4: Simplify right side
    7,992.77x = 50,644,979.81
  5. Step 5: Solve for x
    x = 50,644,979.81/7,992.77
  6. Step 6: Final answer
    x = 6,336.35

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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.