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Finding the Fourth Proportional to 4,615.92, 6,924.96 and 2,019.60

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Solution

The fourth proportional to 4,615.92, 6,924.96 and 2,019.60 is: 3,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615.92 : 6,924.96 = 2,019.60 : x
  2. Step 2: Convert to fraction form
    4,615.92/6,924.96 = 2,019.60/x
  3. Step 3: Cross multiply
    4,615.92x = 6,924.96 × 2,019.60
  4. Step 4: Simplify right side
    4,615.92x = 13,985,649.22
  5. Step 5: Solve for x
    x = 13,985,649.22/4,615.92
  6. Step 6: Final answer
    x = 3,029.87

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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.