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Finding the Fourth Proportional to 3,776.62, 5,659.70 and 1,434.22

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Solution

The fourth proportional to 3,776.62, 5,659.70 and 1,434.22 is: 2,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.62 : 5,659.70 = 1,434.22 : x
  2. Step 2: Convert to fraction form
    3,776.62/5,659.70 = 1,434.22/x
  3. Step 3: Cross multiply
    3,776.62x = 5,659.70 × 1,434.22
  4. Step 4: Simplify right side
    3,776.62x = 8,117,254.93
  5. Step 5: Solve for x
    x = 8,117,254.93/3,776.62
  6. Step 6: Final answer
    x = 2,149.34

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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.