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Finding the Fourth Proportional to 6,711.96, 9,257.54 and 4,320.39

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Solution

The fourth proportional to 6,711.96, 9,257.54 and 4,320.39 is: 5,958.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,711.96 : 9,257.54 = 4,320.39 : x
  2. Step 2: Convert to fraction form
    6,711.96/9,257.54 = 4,320.39/x
  3. Step 3: Cross multiply
    6,711.96x = 9,257.54 × 4,320.39
  4. Step 4: Simplify right side
    6,711.96x = 39,996,168.58
  5. Step 5: Solve for x
    x = 39,996,168.58/6,711.96
  6. Step 6: Final answer
    x = 5,958.94

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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.