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Finding the Fourth Proportional to 5,670.99, 8,500.94 and 2,551.78

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Solution

The fourth proportional to 5,670.99, 8,500.94 and 2,551.78 is: 3,825.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.99 : 8,500.94 = 2,551.78 : x
  2. Step 2: Convert to fraction form
    5,670.99/8,500.94 = 2,551.78/x
  3. Step 3: Cross multiply
    5,670.99x = 8,500.94 × 2,551.78
  4. Step 4: Simplify right side
    5,670.99x = 21,692,494.66
  5. Step 5: Solve for x
    x = 21,692,494.66/5,670.99
  6. Step 6: Final answer
    x = 3,825.17

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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.