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Finding the Fourth Proportional to 18,555.92, 25,612.56 and 10,602.56

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Solution

The fourth proportional to 18,555.92, 25,612.56 and 10,602.56 is: 14,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.92 : 25,612.56 = 10,602.56 : x
  2. Step 2: Convert to fraction form
    18,555.92/25,612.56 = 10,602.56/x
  3. Step 3: Cross multiply
    18,555.92x = 25,612.56 × 10,602.56
  4. Step 4: Simplify right side
    18,555.92x = 271,558,704.15
  5. Step 5: Solve for x
    x = 271,558,704.15/18,555.92
  6. Step 6: Final answer
    x = 14,634.61

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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.