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Finding the Fourth Proportional to 11,778.87, 16,253.89 and 6,741.94

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Solution

The fourth proportional to 11,778.87, 16,253.89 and 6,741.94 is: 9,303.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.87 : 16,253.89 = 6,741.94 : x
  2. Step 2: Convert to fraction form
    11,778.87/16,253.89 = 6,741.94/x
  3. Step 3: Cross multiply
    11,778.87x = 16,253.89 × 6,741.94
  4. Step 4: Simplify right side
    11,778.87x = 109,582,751.15
  5. Step 5: Solve for x
    x = 109,582,751.15/11,778.87
  6. Step 6: Final answer
    x = 9,303.33

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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.