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Finding the Fourth Proportional to 11,957.15, 16,500.84 and 6,651.84

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Solution

The fourth proportional to 11,957.15, 16,500.84 and 6,651.84 is: 9,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,957.15 : 16,500.84 = 6,651.84 : x
  2. Step 2: Convert to fraction form
    11,957.15/16,500.84 = 6,651.84/x
  3. Step 3: Cross multiply
    11,957.15x = 16,500.84 × 6,651.84
  4. Step 4: Simplify right side
    11,957.15x = 109,760,947.55
  5. Step 5: Solve for x
    x = 109,760,947.55/11,957.15
  6. Step 6: Final answer
    x = 9,179.53

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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.