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Finding the Fourth Proportional to 16,658.70, 22,964.66 and 12,672.89

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Solution

The fourth proportional to 16,658.70, 22,964.66 and 12,672.89 is: 17,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.70 : 22,964.66 = 12,672.89 : x
  2. Step 2: Convert to fraction form
    16,658.70/22,964.66 = 12,672.89/x
  3. Step 3: Cross multiply
    16,658.70x = 22,964.66 × 12,672.89
  4. Step 4: Simplify right side
    16,658.70x = 291,028,431.88
  5. Step 5: Solve for x
    x = 291,028,431.88/16,658.70
  6. Step 6: Final answer
    x = 17,470.06

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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.