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Finding the Fourth Proportional to 13,743.56, 20,615.56 and 4,509.56

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Solution

The fourth proportional to 13,743.56, 20,615.56 and 4,509.56 is: 6,764.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.56 : 20,615.56 = 4,509.56 : x
  2. Step 2: Convert to fraction form
    13,743.56/20,615.56 = 4,509.56/x
  3. Step 3: Cross multiply
    13,743.56x = 20,615.56 × 4,509.56
  4. Step 4: Simplify right side
    13,743.56x = 92,967,145.02
  5. Step 5: Solve for x
    x = 92,967,145.02/13,743.56
  6. Step 6: Final answer
    x = 6,764.41

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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.