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Finding the Fourth Proportional to 8,511.61, 11,745.85 and 4,734.70

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Solution

The fourth proportional to 8,511.61, 11,745.85 and 4,734.70 is: 6,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.61 : 11,745.85 = 4,734.70 : x
  2. Step 2: Convert to fraction form
    8,511.61/11,745.85 = 4,734.70/x
  3. Step 3: Cross multiply
    8,511.61x = 11,745.85 × 4,734.70
  4. Step 4: Simplify right side
    8,511.61x = 55,613,017.27
  5. Step 5: Solve for x
    x = 55,613,017.27/8,511.61
  6. Step 6: Final answer
    x = 6,533.78

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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.