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Finding the Fourth Proportional to 3,611.70, 5,417.55 and 2,693.70

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Solution

The fourth proportional to 3,611.70, 5,417.55 and 2,693.70 is: 4,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.70 : 5,417.55 = 2,693.70 : x
  2. Step 2: Convert to fraction form
    3,611.70/5,417.55 = 2,693.70/x
  3. Step 3: Cross multiply
    3,611.70x = 5,417.55 × 2,693.70
  4. Step 4: Simplify right side
    3,611.70x = 14,593,254.44
  5. Step 5: Solve for x
    x = 14,593,254.44/3,611.70
  6. Step 6: Final answer
    x = 4,040.55

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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.