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Finding the Fourth Proportional to 6,936.17, 9,572.85 and 6,345.68

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Solution

The fourth proportional to 6,936.17, 9,572.85 and 6,345.68 is: 8,757.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.17 : 9,572.85 = 6,345.68 : x
  2. Step 2: Convert to fraction form
    6,936.17/9,572.85 = 6,345.68/x
  3. Step 3: Cross multiply
    6,936.17x = 9,572.85 × 6,345.68
  4. Step 4: Simplify right side
    6,936.17x = 60,746,194.92
  5. Step 5: Solve for x
    x = 60,746,194.92/6,936.17
  6. Step 6: Final answer
    x = 8,757.89

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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.