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Finding the Fourth Proportional to 3,658.77, 5,049.54 and 2,087.17

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Solution

The fourth proportional to 3,658.77, 5,049.54 and 2,087.17 is: 2,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.77 : 5,049.54 = 2,087.17 : x
  2. Step 2: Convert to fraction form
    3,658.77/5,049.54 = 2,087.17/x
  3. Step 3: Cross multiply
    3,658.77x = 5,049.54 × 2,087.17
  4. Step 4: Simplify right side
    3,658.77x = 10,539,235.78
  5. Step 5: Solve for x
    x = 10,539,235.78/3,658.77
  6. Step 6: Final answer
    x = 2,880.54

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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.