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Finding the Fourth Proportional to 4,886.92, 6,743.94 and 2,648.80

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Solution

The fourth proportional to 4,886.92, 6,743.94 and 2,648.80 is: 3,655.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.92 : 6,743.94 = 2,648.80 : x
  2. Step 2: Convert to fraction form
    4,886.92/6,743.94 = 2,648.80/x
  3. Step 3: Cross multiply
    4,886.92x = 6,743.94 × 2,648.80
  4. Step 4: Simplify right side
    4,886.92x = 17,863,348.27
  5. Step 5: Solve for x
    x = 17,863,348.27/4,886.92
  6. Step 6: Final answer
    x = 3,655.34

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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.