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Finding the Fourth Proportional to 18,424.54, 27,636.81 and 4,573.54

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Solution

The fourth proportional to 18,424.54, 27,636.81 and 4,573.54 is: 6,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.54 : 27,636.81 = 4,573.54 : x
  2. Step 2: Convert to fraction form
    18,424.54/27,636.81 = 4,573.54/x
  3. Step 3: Cross multiply
    18,424.54x = 27,636.81 × 4,573.54
  4. Step 4: Simplify right side
    18,424.54x = 126,397,894.96
  5. Step 5: Solve for x
    x = 126,397,894.96/18,424.54
  6. Step 6: Final answer
    x = 6,860.30

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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.