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Finding the Fourth Proportional to 2,963.76, 4,087.04 and 2,300.38

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Solution

The fourth proportional to 2,963.76, 4,087.04 and 2,300.38 is: 3,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,963.76 : 4,087.04 = 2,300.38 : x
  2. Step 2: Convert to fraction form
    2,963.76/4,087.04 = 2,300.38/x
  3. Step 3: Cross multiply
    2,963.76x = 4,087.04 × 2,300.38
  4. Step 4: Simplify right side
    2,963.76x = 9,401,745.08
  5. Step 5: Solve for x
    x = 9,401,745.08/2,963.76
  6. Step 6: Final answer
    x = 3,172.24

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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.