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Finding the Fourth Proportional to 16,311.24, 22,509.52 and 8,859.24

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Solution

The fourth proportional to 16,311.24, 22,509.52 and 8,859.24 is: 12,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,311.24 : 22,509.52 = 8,859.24 : x
  2. Step 2: Convert to fraction form
    16,311.24/22,509.52 = 8,859.24/x
  3. Step 3: Cross multiply
    16,311.24x = 22,509.52 × 8,859.24
  4. Step 4: Simplify right side
    16,311.24x = 199,417,239.96
  5. Step 5: Solve for x
    x = 199,417,239.96/16,311.24
  6. Step 6: Final answer
    x = 12,225.76

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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.