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Finding the Fourth Proportional to 5,649.73, 8,479.77 and 2,878.39

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Solution

The fourth proportional to 5,649.73, 8,479.77 and 2,878.39 is: 4,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.73 : 8,479.77 = 2,878.39 : x
  2. Step 2: Convert to fraction form
    5,649.73/8,479.77 = 2,878.39/x
  3. Step 3: Cross multiply
    5,649.73x = 8,479.77 × 2,878.39
  4. Step 4: Simplify right side
    5,649.73x = 24,408,085.17
  5. Step 5: Solve for x
    x = 24,408,085.17/5,649.73
  6. Step 6: Final answer
    x = 4,320.22

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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.