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Finding the Fourth Proportional to 8,554.36, 12,831.53 and 6,229.16

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Solution

The fourth proportional to 8,554.36, 12,831.53 and 6,229.16 is: 9,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.36 : 12,831.53 = 6,229.16 : x
  2. Step 2: Convert to fraction form
    8,554.36/12,831.53 = 6,229.16/x
  3. Step 3: Cross multiply
    8,554.36x = 12,831.53 × 6,229.16
  4. Step 4: Simplify right side
    8,554.36x = 79,929,653.41
  5. Step 5: Solve for x
    x = 79,929,653.41/8,554.36
  6. Step 6: Final answer
    x = 9,343.73

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Similar ratio
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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.