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Finding the Fourth Proportional to 5,426.68, 7,489.02 and 3,068.68

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Solution

The fourth proportional to 5,426.68, 7,489.02 and 3,068.68 is: 4,234.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.68 : 7,489.02 = 3,068.68 : x
  2. Step 2: Convert to fraction form
    5,426.68/7,489.02 = 3,068.68/x
  3. Step 3: Cross multiply
    5,426.68x = 7,489.02 × 3,068.68
  4. Step 4: Simplify right side
    5,426.68x = 22,981,405.89
  5. Step 5: Solve for x
    x = 22,981,405.89/5,426.68
  6. Step 6: Final answer
    x = 4,234.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.