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Finding the Fourth Proportional to 8,959.28, 12,364.06 and 5,891.98

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Solution

The fourth proportional to 8,959.28, 12,364.06 and 5,891.98 is: 8,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.28 : 12,364.06 = 5,891.98 : x
  2. Step 2: Convert to fraction form
    8,959.28/12,364.06 = 5,891.98/x
  3. Step 3: Cross multiply
    8,959.28x = 12,364.06 × 5,891.98
  4. Step 4: Simplify right side
    8,959.28x = 72,848,794.24
  5. Step 5: Solve for x
    x = 72,848,794.24/8,959.28
  6. Step 6: Final answer
    x = 8,131.10

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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.