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Finding the Fourth Proportional to 16,691.92, 25,041.54 and 4,845.86

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Solution

The fourth proportional to 16,691.92, 25,041.54 and 4,845.86 is: 7,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.92 : 25,041.54 = 4,845.86 : x
  2. Step 2: Convert to fraction form
    16,691.92/25,041.54 = 4,845.86/x
  3. Step 3: Cross multiply
    16,691.92x = 25,041.54 × 4,845.86
  4. Step 4: Simplify right side
    16,691.92x = 121,347,797.02
  5. Step 5: Solve for x
    x = 121,347,797.02/16,691.92
  6. Step 6: Final answer
    x = 7,269.85

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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.