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Finding the Fourth Proportional to 9,108.75, 12,571.17 and 6,599.17

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Solution

The fourth proportional to 9,108.75, 12,571.17 and 6,599.17 is: 9,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.75 : 12,571.17 = 6,599.17 : x
  2. Step 2: Convert to fraction form
    9,108.75/12,571.17 = 6,599.17/x
  3. Step 3: Cross multiply
    9,108.75x = 12,571.17 × 6,599.17
  4. Step 4: Simplify right side
    9,108.75x = 82,959,278.90
  5. Step 5: Solve for x
    x = 82,959,278.90/9,108.75
  6. Step 6: Final answer
    x = 9,107.64

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Half scale
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Double scale
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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.