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Finding the Fourth Proportional to 16,490.25, 24,644.84 and 12,057.25

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Solution

The fourth proportional to 16,490.25, 24,644.84 and 12,057.25 is: 18,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.25 : 24,644.84 = 12,057.25 : x
  2. Step 2: Convert to fraction form
    16,490.25/24,644.84 = 12,057.25/x
  3. Step 3: Cross multiply
    16,490.25x = 24,644.84 × 12,057.25
  4. Step 4: Simplify right side
    16,490.25x = 297,148,936.80
  5. Step 5: Solve for x
    x = 297,148,936.80/16,490.25
  6. Step 6: Final answer
    x = 18,019.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.