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Finding the Fourth Proportional to 3,714.95, 5,561.62 and 2,890.73

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Solution

The fourth proportional to 3,714.95, 5,561.62 and 2,890.73 is: 4,327.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.95 : 5,561.62 = 2,890.73 : x
  2. Step 2: Convert to fraction form
    3,714.95/5,561.62 = 2,890.73/x
  3. Step 3: Cross multiply
    3,714.95x = 5,561.62 × 2,890.73
  4. Step 4: Simplify right side
    3,714.95x = 16,077,129.68
  5. Step 5: Solve for x
    x = 16,077,129.68/3,714.95
  6. Step 6: Final answer
    x = 4,327.68

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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.