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Finding the Fourth Proportional to 3,604.52, 5,407.27 and 1,412.98

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Solution

The fourth proportional to 3,604.52, 5,407.27 and 1,412.98 is: 2,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.52 : 5,407.27 = 1,412.98 : x
  2. Step 2: Convert to fraction form
    3,604.52/5,407.27 = 1,412.98/x
  3. Step 3: Cross multiply
    3,604.52x = 5,407.27 × 1,412.98
  4. Step 4: Simplify right side
    3,604.52x = 7,640,347.31
  5. Step 5: Solve for x
    x = 7,640,347.31/3,604.52
  6. Step 6: Final answer
    x = 2,119.66

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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.