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Finding the Fourth Proportional to 7,611.75, 11,417.63 and 2,417.63

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Solution

The fourth proportional to 7,611.75, 11,417.63 and 2,417.63 is: 3,626.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.75 : 11,417.63 = 2,417.63 : x
  2. Step 2: Convert to fraction form
    7,611.75/11,417.63 = 2,417.63/x
  3. Step 3: Cross multiply
    7,611.75x = 11,417.63 × 2,417.63
  4. Step 4: Simplify right side
    7,611.75x = 27,603,535.64
  5. Step 5: Solve for x
    x = 27,603,535.64/7,611.75
  6. Step 6: Final answer
    x = 3,626.44

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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.