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Finding the Fourth Proportional to 5,611.48, 7,743.80 and 3,059.24

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Solution

The fourth proportional to 5,611.48, 7,743.80 and 3,059.24 is: 4,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.48 : 7,743.80 = 3,059.24 : x
  2. Step 2: Convert to fraction form
    5,611.48/7,743.80 = 3,059.24/x
  3. Step 3: Cross multiply
    5,611.48x = 7,743.80 × 3,059.24
  4. Step 4: Simplify right side
    5,611.48x = 23,690,111.64
  5. Step 5: Solve for x
    x = 23,690,111.64/5,611.48
  6. Step 6: Final answer
    x = 4,221.72

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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.