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Finding the Fourth Proportional to 18,497.52, 25,525.64 and 11,424.56

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Solution

The fourth proportional to 18,497.52, 25,525.64 and 11,424.56 is: 15,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,497.52 : 25,525.64 = 11,424.56 : x
  2. Step 2: Convert to fraction form
    18,497.52/25,525.64 = 11,424.56/x
  3. Step 3: Cross multiply
    18,497.52x = 25,525.64 × 11,424.56
  4. Step 4: Simplify right side
    18,497.52x = 291,619,205.72
  5. Step 5: Solve for x
    x = 291,619,205.72/18,497.52
  6. Step 6: Final answer
    x = 15,765.31

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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.