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Finding the Fourth Proportional to 12,554.46, 18,831.42 and 6,722.46

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Solution

The fourth proportional to 12,554.46, 18,831.42 and 6,722.46 is: 10,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.46 : 18,831.42 = 6,722.46 : x
  2. Step 2: Convert to fraction form
    12,554.46/18,831.42 = 6,722.46/x
  3. Step 3: Cross multiply
    12,554.46x = 18,831.42 × 6,722.46
  4. Step 4: Simplify right side
    12,554.46x = 126,593,467.69
  5. Step 5: Solve for x
    x = 126,593,467.69/12,554.46
  6. Step 6: Final answer
    x = 10,083.55

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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.