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Finding the Fourth Proportional to 1,436.52, 2,149.11 and 1,425.99

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Solution

The fourth proportional to 1,436.52, 2,149.11 and 1,425.99 is: 2,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.52 : 2,149.11 = 1,425.99 : x
  2. Step 2: Convert to fraction form
    1,436.52/2,149.11 = 1,425.99/x
  3. Step 3: Cross multiply
    1,436.52x = 2,149.11 × 1,425.99
  4. Step 4: Simplify right side
    1,436.52x = 3,064,609.37
  5. Step 5: Solve for x
    x = 3,064,609.37/1,436.52
  6. Step 6: Final answer
    x = 2,133.36

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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.