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Finding the Fourth Proportional to 18,706.91, 28,050.98 and 6,222.53

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Solution

The fourth proportional to 18,706.91, 28,050.98 and 6,222.53 is: 9,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706.91 : 28,050.98 = 6,222.53 : x
  2. Step 2: Convert to fraction form
    18,706.91/28,050.98 = 6,222.53/x
  3. Step 3: Cross multiply
    18,706.91x = 28,050.98 × 6,222.53
  4. Step 4: Simplify right side
    18,706.91x = 174,548,103.59
  5. Step 5: Solve for x
    x = 174,548,103.59/18,706.91
  6. Step 6: Final answer
    x = 9,330.68

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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.