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Finding the Fourth Proportional to 6,917.99, 10,377.63 and 2,756.99

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Solution

The fourth proportional to 6,917.99, 10,377.63 and 2,756.99 is: 4,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.99 : 10,377.63 = 2,756.99 : x
  2. Step 2: Convert to fraction form
    6,917.99/10,377.63 = 2,756.99/x
  3. Step 3: Cross multiply
    6,917.99x = 10,377.63 × 2,756.99
  4. Step 4: Simplify right side
    6,917.99x = 28,611,022.13
  5. Step 5: Solve for x
    x = 28,611,022.13/6,917.99
  6. Step 6: Final answer
    x = 4,135.74

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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.