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Finding the Fourth Proportional to 16,263.25, 22,443.29 and 8,811.25

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Solution

The fourth proportional to 16,263.25, 22,443.29 and 8,811.25 is: 12,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,263.25 : 22,443.29 = 8,811.25 : x
  2. Step 2: Convert to fraction form
    16,263.25/22,443.29 = 8,811.25/x
  3. Step 3: Cross multiply
    16,263.25x = 22,443.29 × 8,811.25
  4. Step 4: Simplify right side
    16,263.25x = 197,753,439.01
  5. Step 5: Solve for x
    x = 197,753,439.01/16,263.25
  6. Step 6: Final answer
    x = 12,159.53

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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.