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Finding the Fourth Proportional to 6,930.92, 9,564.82 and 3,787.32

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Solution

The fourth proportional to 6,930.92, 9,564.82 and 3,787.32 is: 5,226.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.92 : 9,564.82 = 3,787.32 : x
  2. Step 2: Convert to fraction form
    6,930.92/9,564.82 = 3,787.32/x
  3. Step 3: Cross multiply
    6,930.92x = 9,564.82 × 3,787.32
  4. Step 4: Simplify right side
    6,930.92x = 36,225,034.08
  5. Step 5: Solve for x
    x = 36,225,034.08/6,930.92
  6. Step 6: Final answer
    x = 5,226.58

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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.