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Finding the Fourth Proportional to 6,818.30, 10,213.05 and 5,666.30

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Solution

The fourth proportional to 6,818.30, 10,213.05 and 5,666.30 is: 8,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.30 : 10,213.05 = 5,666.30 : x
  2. Step 2: Convert to fraction form
    6,818.30/10,213.05 = 5,666.30/x
  3. Step 3: Cross multiply
    6,818.30x = 10,213.05 × 5,666.30
  4. Step 4: Simplify right side
    6,818.30x = 57,870,205.22
  5. Step 5: Solve for x
    x = 57,870,205.22/6,818.30
  6. Step 6: Final answer
    x = 8,487.48

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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.