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Finding the Fourth Proportional to 18,426.69, 27,640.04 and 4,575.69

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Solution

The fourth proportional to 18,426.69, 27,640.04 and 4,575.69 is: 6,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.69 : 27,640.04 = 4,575.69 : x
  2. Step 2: Convert to fraction form
    18,426.69/27,640.04 = 4,575.69/x
  3. Step 3: Cross multiply
    18,426.69x = 27,640.04 × 4,575.69
  4. Step 4: Simplify right side
    18,426.69x = 126,472,254.63
  5. Step 5: Solve for x
    x = 126,472,254.63/18,426.69
  6. Step 6: Final answer
    x = 6,863.54

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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.