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Finding the Fourth Proportional to 4,940.71, 6,819.92 and 3,053.74

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Solution

The fourth proportional to 4,940.71, 6,819.92 and 3,053.74 is: 4,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.71 : 6,819.92 = 3,053.74 : x
  2. Step 2: Convert to fraction form
    4,940.71/6,819.92 = 3,053.74/x
  3. Step 3: Cross multiply
    4,940.71x = 6,819.92 × 3,053.74
  4. Step 4: Simplify right side
    4,940.71x = 20,826,267.21
  5. Step 5: Solve for x
    x = 20,826,267.21/4,940.71
  6. Step 6: Final answer
    x = 4,215.24

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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.