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Finding the Fourth Proportional to 18,104.66, 27,153.84 and 4,953.90

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Solution

The fourth proportional to 18,104.66, 27,153.84 and 4,953.90 is: 7,429.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,104.66 : 27,153.84 = 4,953.90 : x
  2. Step 2: Convert to fraction form
    18,104.66/27,153.84 = 4,953.90/x
  3. Step 3: Cross multiply
    18,104.66x = 27,153.84 × 4,953.90
  4. Step 4: Simplify right side
    18,104.66x = 134,517,407.98
  5. Step 5: Solve for x
    x = 134,517,407.98/18,104.66
  6. Step 6: Final answer
    x = 7,429.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.