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Finding the Fourth Proportional to 3,392.74, 4,682.01 and 1,900.66

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Solution

The fourth proportional to 3,392.74, 4,682.01 and 1,900.66 is: 2,622.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.74 : 4,682.01 = 1,900.66 : x
  2. Step 2: Convert to fraction form
    3,392.74/4,682.01 = 1,900.66/x
  3. Step 3: Cross multiply
    3,392.74x = 4,682.01 × 1,900.66
  4. Step 4: Simplify right side
    3,392.74x = 8,898,909.13
  5. Step 5: Solve for x
    x = 8,898,909.13/3,392.74
  6. Step 6: Final answer
    x = 2,622.93

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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.