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Finding the Fourth Proportional to 8,411.15, 12,601.92 and 7,494.86

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Solution

The fourth proportional to 8,411.15, 12,601.92 and 7,494.86 is: 11,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.15 : 12,601.92 = 7,494.86 : x
  2. Step 2: Convert to fraction form
    8,411.15/12,601.92 = 7,494.86/x
  3. Step 3: Cross multiply
    8,411.15x = 12,601.92 × 7,494.86
  4. Step 4: Simplify right side
    8,411.15x = 94,449,618.32
  5. Step 5: Solve for x
    x = 94,449,618.32/8,411.15
  6. Step 6: Final answer
    x = 11,229.10

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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.