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Finding the Fourth Proportional to 4,672.64, 7,008.83 and 1,711.76

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Solution

The fourth proportional to 4,672.64, 7,008.83 and 1,711.76 is: 2,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672.64 : 7,008.83 = 1,711.76 : x
  2. Step 2: Convert to fraction form
    4,672.64/7,008.83 = 1,711.76/x
  3. Step 3: Cross multiply
    4,672.64x = 7,008.83 × 1,711.76
  4. Step 4: Simplify right side
    4,672.64x = 11,997,399.80
  5. Step 5: Solve for x
    x = 11,997,399.80/4,672.64
  6. Step 6: Final answer
    x = 2,567.59

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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.