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Finding the Fourth Proportional to 18,608.52, 25,679.72 and 10,225

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Solution

The fourth proportional to 18,608.52, 25,679.72 and 10,225 is: 14,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.52 : 25,679.72 = 10,225 : x
  2. Step 2: Convert to fraction form
    18,608.52/25,679.72 = 10,225/x
  3. Step 3: Cross multiply
    18,608.52x = 25,679.72 × 10,225
  4. Step 4: Simplify right side
    18,608.52x = 262,575,137
  5. Step 5: Solve for x
    x = 262,575,137/18,608.52
  6. Step 6: Final answer
    x = 14,110.48

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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.