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Finding the Fourth Proportional to 11,964.88, 16,510.90 and 9,134.23

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Solution

The fourth proportional to 11,964.88, 16,510.90 and 9,134.23 is: 12,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.88 : 16,510.90 = 9,134.23 : x
  2. Step 2: Convert to fraction form
    11,964.88/16,510.90 = 9,134.23/x
  3. Step 3: Cross multiply
    11,964.88x = 16,510.90 × 9,134.23
  4. Step 4: Simplify right side
    11,964.88x = 150,814,358.11
  5. Step 5: Solve for x
    x = 150,814,358.11/11,964.88
  6. Step 6: Final answer
    x = 12,604.75

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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.