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Finding the Fourth Proportional to 8,940.12, 12,337.32 and 4,961.22

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Solution

The fourth proportional to 8,940.12, 12,337.32 and 4,961.22 is: 6,846.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.12 : 12,337.32 = 4,961.22 : x
  2. Step 2: Convert to fraction form
    8,940.12/12,337.32 = 4,961.22/x
  3. Step 3: Cross multiply
    8,940.12x = 12,337.32 × 4,961.22
  4. Step 4: Simplify right side
    8,940.12x = 61,208,158.73
  5. Step 5: Solve for x
    x = 61,208,158.73/8,940.12
  6. Step 6: Final answer
    x = 6,846.46

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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.