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Finding the Fourth Proportional to 8,633.36, 12,947.90 and 3,702.44

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Solution

The fourth proportional to 8,633.36, 12,947.90 and 3,702.44 is: 5,552.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.36 : 12,947.90 = 3,702.44 : x
  2. Step 2: Convert to fraction form
    8,633.36/12,947.90 = 3,702.44/x
  3. Step 3: Cross multiply
    8,633.36x = 12,947.90 × 3,702.44
  4. Step 4: Simplify right side
    8,633.36x = 47,938,822.88
  5. Step 5: Solve for x
    x = 47,938,822.88/8,633.36
  6. Step 6: Final answer
    x = 5,552.74

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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.