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Finding the Fourth Proportional to 13,493.55, 18,620.13 and 7,525.56

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Solution

The fourth proportional to 13,493.55, 18,620.13 and 7,525.56 is: 10,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.55 : 18,620.13 = 7,525.56 : x
  2. Step 2: Convert to fraction form
    13,493.55/18,620.13 = 7,525.56/x
  3. Step 3: Cross multiply
    13,493.55x = 18,620.13 × 7,525.56
  4. Step 4: Simplify right side
    13,493.55x = 140,126,905.52
  5. Step 5: Solve for x
    x = 140,126,905.52/13,493.55
  6. Step 6: Final answer
    x = 10,384.73

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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.