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Finding the Fourth Proportional to 7,271.02, 10,913.20 and 4,503.10

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Solution

The fourth proportional to 7,271.02, 10,913.20 and 4,503.10 is: 6,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.02 : 10,913.20 = 4,503.10 : x
  2. Step 2: Convert to fraction form
    7,271.02/10,913.20 = 4,503.10/x
  3. Step 3: Cross multiply
    7,271.02x = 10,913.20 × 4,503.10
  4. Step 4: Simplify right side
    7,271.02x = 49,143,230.92
  5. Step 5: Solve for x
    x = 49,143,230.92/7,271.02
  6. Step 6: Final answer
    x = 6,758.78

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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.