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Finding the Fourth Proportional to 8,940.46, 12,337.88 and 4,961.58

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Solution

The fourth proportional to 8,940.46, 12,337.88 and 4,961.58 is: 6,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.46 : 12,337.88 = 4,961.58 : x
  2. Step 2: Convert to fraction form
    8,940.46/12,337.88 = 4,961.58/x
  3. Step 3: Cross multiply
    8,940.46x = 12,337.88 × 4,961.58
  4. Step 4: Simplify right side
    8,940.46x = 61,215,378.65
  5. Step 5: Solve for x
    x = 61,215,378.65/8,940.46
  6. Step 6: Final answer
    x = 6,847.01

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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.