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Finding the Fourth Proportional to 3,702.72, 5,108.40 and 2,444.40

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Solution

The fourth proportional to 3,702.72, 5,108.40 and 2,444.40 is: 3,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.72 : 5,108.40 = 2,444.40 : x
  2. Step 2: Convert to fraction form
    3,702.72/5,108.40 = 2,444.40/x
  3. Step 3: Cross multiply
    3,702.72x = 5,108.40 × 2,444.40
  4. Step 4: Simplify right side
    3,702.72x = 12,486,972.96
  5. Step 5: Solve for x
    x = 12,486,972.96/3,702.72
  6. Step 6: Final answer
    x = 3,372.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.