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Finding the Fourth Proportional to 18,695.66, 28,048.94 and 5,548.37

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Solution

The fourth proportional to 18,695.66, 28,048.94 and 5,548.37 is: 8,324.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.66 : 28,048.94 = 5,548.37 : x
  2. Step 2: Convert to fraction form
    18,695.66/28,048.94 = 5,548.37/x
  3. Step 3: Cross multiply
    18,695.66x = 28,048.94 × 5,548.37
  4. Step 4: Simplify right side
    18,695.66x = 155,625,770.85
  5. Step 5: Solve for x
    x = 155,625,770.85/18,695.66
  6. Step 6: Final answer
    x = 8,324.17

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1.5x scale

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.