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Finding the Fourth Proportional to 6,142.71, 8,476.92 and 3,348.21

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Solution

The fourth proportional to 6,142.71, 8,476.92 and 3,348.21 is: 4,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.71 : 8,476.92 = 3,348.21 : x
  2. Step 2: Convert to fraction form
    6,142.71/8,476.92 = 3,348.21/x
  3. Step 3: Cross multiply
    6,142.71x = 8,476.92 × 3,348.21
  4. Step 4: Simplify right side
    6,142.71x = 28,382,508.31
  5. Step 5: Solve for x
    x = 28,382,508.31/6,142.71
  6. Step 6: Final answer
    x = 4,620.52

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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.