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Finding the Fourth Proportional to 16,551.70, 24,820.95 and 5,455.30

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Solution

The fourth proportional to 16,551.70, 24,820.95 and 5,455.30 is: 8,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,551.70 : 24,820.95 = 5,455.30 : x
  2. Step 2: Convert to fraction form
    16,551.70/24,820.95 = 5,455.30/x
  3. Step 3: Cross multiply
    16,551.70x = 24,820.95 × 5,455.30
  4. Step 4: Simplify right side
    16,551.70x = 135,405,728.54
  5. Step 5: Solve for x
    x = 135,405,728.54/16,551.70
  6. Step 6: Final answer
    x = 8,180.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.