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Finding the Fourth Proportional to 18,575.54, 25,627.52 and 12,205.57

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Solution

The fourth proportional to 18,575.54, 25,627.52 and 12,205.57 is: 16,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.54 : 25,627.52 = 12,205.57 : x
  2. Step 2: Convert to fraction form
    18,575.54/25,627.52 = 12,205.57/x
  3. Step 3: Cross multiply
    18,575.54x = 25,627.52 × 12,205.57
  4. Step 4: Simplify right side
    18,575.54x = 312,798,489.29
  5. Step 5: Solve for x
    x = 312,798,489.29/18,575.54
  6. Step 6: Final answer
    x = 16,839.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.