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Finding the Fourth Proportional to 16,393.28, 22,622.80 and 8,941.28

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Solution

The fourth proportional to 16,393.28, 22,622.80 and 8,941.28 is: 12,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,393.28 : 22,622.80 = 8,941.28 : x
  2. Step 2: Convert to fraction form
    16,393.28/22,622.80 = 8,941.28/x
  3. Step 3: Cross multiply
    16,393.28x = 22,622.80 × 8,941.28
  4. Step 4: Simplify right side
    16,393.28x = 202,276,789.18
  5. Step 5: Solve for x
    x = 202,276,789.18/16,393.28
  6. Step 6: Final answer
    x = 12,339.01

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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.