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Finding the Fourth Proportional to 3,614.76, 5,425.23 and 1,425.03

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Solution

The fourth proportional to 3,614.76, 5,425.23 and 1,425.03 is: 2,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.76 : 5,425.23 = 1,425.03 : x
  2. Step 2: Convert to fraction form
    3,614.76/5,425.23 = 1,425.03/x
  3. Step 3: Cross multiply
    3,614.76x = 5,425.23 × 1,425.03
  4. Step 4: Simplify right side
    3,614.76x = 7,731,115.51
  5. Step 5: Solve for x
    x = 7,731,115.51/3,614.76
  6. Step 6: Final answer
    x = 2,138.76

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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.