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Finding the Fourth Proportional to 6,718.99, 9,247.74 and 5,917.07

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Solution

The fourth proportional to 6,718.99, 9,247.74 and 5,917.07 is: 8,144.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.99 : 9,247.74 = 5,917.07 : x
  2. Step 2: Convert to fraction form
    6,718.99/9,247.74 = 5,917.07/x
  3. Step 3: Cross multiply
    6,718.99x = 9,247.74 × 5,917.07
  4. Step 4: Simplify right side
    6,718.99x = 54,719,524.92
  5. Step 5: Solve for x
    x = 54,719,524.92/6,718.99
  6. Step 6: Final answer
    x = 8,144.01

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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.