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Finding the Fourth Proportional to 8,274.27, 11,422.18 and 4,918.17

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Solution

The fourth proportional to 8,274.27, 11,422.18 and 4,918.17 is: 6,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.27 : 11,422.18 = 4,918.17 : x
  2. Step 2: Convert to fraction form
    8,274.27/11,422.18 = 4,918.17/x
  3. Step 3: Cross multiply
    8,274.27x = 11,422.18 × 4,918.17
  4. Step 4: Simplify right side
    8,274.27x = 56,176,223.01
  5. Step 5: Solve for x
    x = 56,176,223.01/8,274.27
  6. Step 6: Final answer
    x = 6,789.27

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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.