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Finding the Fourth Proportional to 18,503.52, 27,751.20 and 8,633.52

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Solution

The fourth proportional to 18,503.52, 27,751.20 and 8,633.52 is: 12,948.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.52 : 27,751.20 = 8,633.52 : x
  2. Step 2: Convert to fraction form
    18,503.52/27,751.20 = 8,633.52/x
  3. Step 3: Cross multiply
    18,503.52x = 27,751.20 × 8,633.52
  4. Step 4: Simplify right side
    18,503.52x = 239,590,540.22
  5. Step 5: Solve for x
    x = 239,590,540.22/18,503.52
  6. Step 6: Final answer
    x = 12,948.38

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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.