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Finding the Fourth Proportional to 3,658.95, 5,049.54 and 2,087.01

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Solution

The fourth proportional to 3,658.95, 5,049.54 and 2,087.01 is: 2,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.95 : 5,049.54 = 2,087.01 : x
  2. Step 2: Convert to fraction form
    3,658.95/5,049.54 = 2,087.01/x
  3. Step 3: Cross multiply
    3,658.95x = 5,049.54 × 2,087.01
  4. Step 4: Simplify right side
    3,658.95x = 10,538,440.48
  5. Step 5: Solve for x
    x = 10,538,440.48/3,658.95
  6. Step 6: Final answer
    x = 2,880.18

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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.