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Finding the Fourth Proportional to 7,863.53, 11,789.57 and 3,701.22

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Solution

The fourth proportional to 7,863.53, 11,789.57 and 3,701.22 is: 5,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.53 : 11,789.57 = 3,701.22 : x
  2. Step 2: Convert to fraction form
    7,863.53/11,789.57 = 3,701.22/x
  3. Step 3: Cross multiply
    7,863.53x = 11,789.57 × 3,701.22
  4. Step 4: Simplify right side
    7,863.53x = 43,635,831.86
  5. Step 5: Solve for x
    x = 43,635,831.86/7,863.53
  6. Step 6: Final answer
    x = 5,549.14

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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.