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Finding the Fourth Proportional to 8,940.55, 12,337.02 and 4,961.56

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Solution

The fourth proportional to 8,940.55, 12,337.02 and 4,961.56 is: 6,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.55 : 12,337.02 = 4,961.56 : x
  2. Step 2: Convert to fraction form
    8,940.55/12,337.02 = 4,961.56/x
  3. Step 3: Cross multiply
    8,940.55x = 12,337.02 × 4,961.56
  4. Step 4: Simplify right side
    8,940.55x = 61,210,864.95
  5. Step 5: Solve for x
    x = 61,210,864.95/8,940.55
  6. Step 6: Final answer
    x = 6,846.43

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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.