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Finding the Fourth Proportional to 8,107.95, 11,188.97 and 4,571.17

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Solution

The fourth proportional to 8,107.95, 11,188.97 and 4,571.17 is: 6,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.95 : 11,188.97 = 4,571.17 : x
  2. Step 2: Convert to fraction form
    8,107.95/11,188.97 = 4,571.17/x
  3. Step 3: Cross multiply
    8,107.95x = 11,188.97 × 4,571.17
  4. Step 4: Simplify right side
    8,107.95x = 51,146,617.06
  5. Step 5: Solve for x
    x = 51,146,617.06/8,107.95
  6. Step 6: Final answer
    x = 6,308.20

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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.