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Finding the Fourth Proportional to 7,750.75, 11,626.13 and 2,557.03

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Solution

The fourth proportional to 7,750.75, 11,626.13 and 2,557.03 is: 3,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.75 : 11,626.13 = 2,557.03 : x
  2. Step 2: Convert to fraction form
    7,750.75/11,626.13 = 2,557.03/x
  3. Step 3: Cross multiply
    7,750.75x = 11,626.13 × 2,557.03
  4. Step 4: Simplify right side
    7,750.75x = 29,728,363.19
  5. Step 5: Solve for x
    x = 29,728,363.19/7,750.75
  6. Step 6: Final answer
    x = 3,835.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.