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Finding the Fourth Proportional to 11,695.01, 16,133.86 and 7,218.95

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Solution

The fourth proportional to 11,695.01, 16,133.86 and 7,218.95 is: 9,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,695.01 : 16,133.86 = 7,218.95 : x
  2. Step 2: Convert to fraction form
    11,695.01/16,133.86 = 7,218.95/x
  3. Step 3: Cross multiply
    11,695.01x = 16,133.86 × 7,218.95
  4. Step 4: Simplify right side
    11,695.01x = 116,469,528.65
  5. Step 5: Solve for x
    x = 116,469,528.65/11,695.01
  6. Step 6: Final answer
    x = 9,958.91

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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.