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Finding the Fourth Proportional to 3,594.11, 5,392.17 and 1,128.87

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Solution

The fourth proportional to 3,594.11, 5,392.17 and 1,128.87 is: 1,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,594.11 : 5,392.17 = 1,128.87 : x
  2. Step 2: Convert to fraction form
    3,594.11/5,392.17 = 1,128.87/x
  3. Step 3: Cross multiply
    3,594.11x = 5,392.17 × 1,128.87
  4. Step 4: Simplify right side
    3,594.11x = 6,087,058.95
  5. Step 5: Solve for x
    x = 6,087,058.95/3,594.11
  6. Step 6: Final answer
    x = 1,693.62

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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.