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Finding the Fourth Proportional to 8,745.50, 12,068.64 and 4,766.66

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Solution

The fourth proportional to 8,745.50, 12,068.64 and 4,766.66 is: 6,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.50 : 12,068.64 = 4,766.66 : x
  2. Step 2: Convert to fraction form
    8,745.50/12,068.64 = 4,766.66/x
  3. Step 3: Cross multiply
    8,745.50x = 12,068.64 × 4,766.66
  4. Step 4: Simplify right side
    8,745.50x = 57,527,103.54
  5. Step 5: Solve for x
    x = 57,527,103.54/8,745.50
  6. Step 6: Final answer
    x = 6,577.91

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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.