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Finding the Fourth Proportional to 9,255.75, 12,772.94 and 5,529.75

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Solution

The fourth proportional to 9,255.75, 12,772.94 and 5,529.75 is: 7,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.75 : 12,772.94 = 5,529.75 : x
  2. Step 2: Convert to fraction form
    9,255.75/12,772.94 = 5,529.75/x
  3. Step 3: Cross multiply
    9,255.75x = 12,772.94 × 5,529.75
  4. Step 4: Simplify right side
    9,255.75x = 70,631,137.32
  5. Step 5: Solve for x
    x = 70,631,137.32/9,255.75
  6. Step 6: Final answer
    x = 7,631.06

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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.