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Finding the Fourth Proportional to 6,222.70, 8,723.30 and 6,222.70

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Solution

The fourth proportional to 6,222.70, 8,723.30 and 6,222.70 is: 8,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.70 : 8,723.30 = 6,222.70 : x
  2. Step 2: Convert to fraction form
    6,222.70/8,723.30 = 6,222.70/x
  3. Step 3: Cross multiply
    6,222.70x = 8,723.30 × 6,222.70
  4. Step 4: Simplify right side
    6,222.70x = 54,282,478.91
  5. Step 5: Solve for x
    x = 54,282,478.91/6,222.70
  6. Step 6: Final answer
    x = 8,723.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.