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Finding the Fourth Proportional to 5,611.88, 7,743.95 and 3,254.18

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Solution

The fourth proportional to 5,611.88, 7,743.95 and 3,254.18 is: 4,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.88 : 7,743.95 = 3,254.18 : x
  2. Step 2: Convert to fraction form
    5,611.88/7,743.95 = 3,254.18/x
  3. Step 3: Cross multiply
    5,611.88x = 7,743.95 × 3,254.18
  4. Step 4: Simplify right side
    5,611.88x = 25,200,152.22
  5. Step 5: Solve for x
    x = 25,200,152.22/5,611.88
  6. Step 6: Final answer
    x = 4,490.50

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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.