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Finding the Fourth Proportional to 18,976.59, 28,468.22 and 6,493.68

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Solution

The fourth proportional to 18,976.59, 28,468.22 and 6,493.68 is: 9,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.59 : 28,468.22 = 6,493.68 : x
  2. Step 2: Convert to fraction form
    18,976.59/28,468.22 = 6,493.68/x
  3. Step 3: Cross multiply
    18,976.59x = 28,468.22 × 6,493.68
  4. Step 4: Simplify right side
    18,976.59x = 184,863,478.38
  5. Step 5: Solve for x
    x = 184,863,478.38/18,976.59
  6. Step 6: Final answer
    x = 9,741.66

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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.