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Finding the Fourth Proportional to 3,908.15, 5,862.53 and 1,134.87

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Solution

The fourth proportional to 3,908.15, 5,862.53 and 1,134.87 is: 1,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.15 : 5,862.53 = 1,134.87 : x
  2. Step 2: Convert to fraction form
    3,908.15/5,862.53 = 1,134.87/x
  3. Step 3: Cross multiply
    3,908.15x = 5,862.53 × 1,134.87
  4. Step 4: Simplify right side
    3,908.15x = 6,653,193.35
  5. Step 5: Solve for x
    x = 6,653,193.35/3,908.15
  6. Step 6: Final answer
    x = 1,702.39

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1.5x scale

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.