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Finding the Fourth Proportional to 5,611.76, 8,415.60 and 2,324.24

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Solution

The fourth proportional to 5,611.76, 8,415.60 and 2,324.24 is: 3,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.76 : 8,415.60 = 2,324.24 : x
  2. Step 2: Convert to fraction form
    5,611.76/8,415.60 = 2,324.24/x
  3. Step 3: Cross multiply
    5,611.76x = 8,415.60 × 2,324.24
  4. Step 4: Simplify right side
    5,611.76x = 19,559,874.14
  5. Step 5: Solve for x
    x = 19,559,874.14/5,611.76
  6. Step 6: Final answer
    x = 3,485.52

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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.