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Finding the Fourth Proportional to 6,929.69, 10,392.10 and 3,231.23

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Solution

The fourth proportional to 6,929.69, 10,392.10 and 3,231.23 is: 4,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.69 : 10,392.10 = 3,231.23 : x
  2. Step 2: Convert to fraction form
    6,929.69/10,392.10 = 3,231.23/x
  3. Step 3: Cross multiply
    6,929.69x = 10,392.10 × 3,231.23
  4. Step 4: Simplify right side
    6,929.69x = 33,579,205.24
  5. Step 5: Solve for x
    x = 33,579,205.24/6,929.69
  6. Step 6: Final answer
    x = 4,845.70

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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.