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Finding the Fourth Proportional to 3,503.97, 5,255.84 and 1,423.36

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Solution

The fourth proportional to 3,503.97, 5,255.84 and 1,423.36 is: 2,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.97 : 5,255.84 = 1,423.36 : x
  2. Step 2: Convert to fraction form
    3,503.97/5,255.84 = 1,423.36/x
  3. Step 3: Cross multiply
    3,503.97x = 5,255.84 × 1,423.36
  4. Step 4: Simplify right side
    3,503.97x = 7,480,958.96
  5. Step 5: Solve for x
    x = 7,480,958.96/3,503.97
  6. Step 6: Final answer
    x = 2,134.99

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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.