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Finding the Fourth Proportional to 18,593.58, 25,660.35 and 10,636.86

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Solution

The fourth proportional to 18,593.58, 25,660.35 and 10,636.86 is: 14,679.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.58 : 25,660.35 = 10,636.86 : x
  2. Step 2: Convert to fraction form
    18,593.58/25,660.35 = 10,636.86/x
  3. Step 3: Cross multiply
    18,593.58x = 25,660.35 × 10,636.86
  4. Step 4: Simplify right side
    18,593.58x = 272,945,550.50
  5. Step 5: Solve for x
    x = 272,945,550.50/18,593.58
  6. Step 6: Final answer
    x = 14,679.56

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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.