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Finding the Fourth Proportional to 3,518.68, 4,855.50 and 2,193.88

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Solution

The fourth proportional to 3,518.68, 4,855.50 and 2,193.88 is: 3,027.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.68 : 4,855.50 = 2,193.88 : x
  2. Step 2: Convert to fraction form
    3,518.68/4,855.50 = 2,193.88/x
  3. Step 3: Cross multiply
    3,518.68x = 4,855.50 × 2,193.88
  4. Step 4: Simplify right side
    3,518.68x = 10,652,384.34
  5. Step 5: Solve for x
    x = 10,652,384.34/3,518.68
  6. Step 6: Final answer
    x = 3,027.38

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Find fourth proportional to 3,519.68, 4,856.88 and 2,194.88
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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.