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Finding the Fourth Proportional to 18,706.53, 28,040.07 and 6,223.22

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Solution

The fourth proportional to 18,706.53, 28,040.07 and 6,223.22 is: 9,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.53 : 28,040.07 = 6,223.22 : x
  2. Step 2: Convert to fraction form
    18,706.53/28,040.07 = 6,223.22/x
  3. Step 3: Cross multiply
    18,706.53x = 28,040.07 × 6,223.22
  4. Step 4: Simplify right side
    18,706.53x = 174,499,524.43
  5. Step 5: Solve for x
    x = 174,499,524.43/18,706.53
  6. Step 6: Final answer
    x = 9,328.27

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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.