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Finding the Fourth Proportional to 16,216.63, 22,378.94 and 8,764.63

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Solution

The fourth proportional to 16,216.63, 22,378.94 and 8,764.63 is: 12,095.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,216.63 : 22,378.94 = 8,764.63 : x
  2. Step 2: Convert to fraction form
    16,216.63/22,378.94 = 8,764.63/x
  3. Step 3: Cross multiply
    16,216.63x = 22,378.94 × 8,764.63
  4. Step 4: Simplify right side
    16,216.63x = 196,143,128.89
  5. Step 5: Solve for x
    x = 196,143,128.89/16,216.63
  6. Step 6: Final answer
    x = 12,095.18

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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.