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Finding the Fourth Proportional to 4,737.11, 7,106.06 and 1,813.82

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Solution

The fourth proportional to 4,737.11, 7,106.06 and 1,813.82 is: 2,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,737.11 : 7,106.06 = 1,813.82 : x
  2. Step 2: Convert to fraction form
    4,737.11/7,106.06 = 1,813.82/x
  3. Step 3: Cross multiply
    4,737.11x = 7,106.06 × 1,813.82
  4. Step 4: Simplify right side
    4,737.11x = 12,889,082.75
  5. Step 5: Solve for x
    x = 12,889,082.75/4,737.11
  6. Step 6: Final answer
    x = 2,720.88

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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.