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Finding the Fourth Proportional to 16,261.17, 22,440.42 and 8,809.17

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Solution

The fourth proportional to 16,261.17, 22,440.42 and 8,809.17 is: 12,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,261.17 : 22,440.42 = 8,809.17 : x
  2. Step 2: Convert to fraction form
    16,261.17/22,440.42 = 8,809.17/x
  3. Step 3: Cross multiply
    16,261.17x = 22,440.42 × 8,809.17
  4. Step 4: Simplify right side
    16,261.17x = 197,681,474.65
  5. Step 5: Solve for x
    x = 197,681,474.65/16,261.17
  6. Step 6: Final answer
    x = 12,156.66

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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.