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Finding the Fourth Proportional to 16,658.46, 22,978.62 and 10,993.23

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Solution

The fourth proportional to 16,658.46, 22,978.62 and 10,993.23 is: 15,164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.46 : 22,978.62 = 10,993.23 : x
  2. Step 2: Convert to fraction form
    16,658.46/22,978.62 = 10,993.23/x
  3. Step 3: Cross multiply
    16,658.46x = 22,978.62 × 10,993.23
  4. Step 4: Simplify right side
    16,658.46x = 252,609,254.74
  5. Step 5: Solve for x
    x = 252,609,254.74/16,658.46
  6. Step 6: Final answer
    x = 15,164.02

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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.