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Finding the Fourth Proportional to 18,174.58, 25,054.63 and 12,031.99

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Solution

The fourth proportional to 18,174.58, 25,054.63 and 12,031.99 is: 16,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.58 : 25,054.63 = 12,031.99 : x
  2. Step 2: Convert to fraction form
    18,174.58/25,054.63 = 12,031.99/x
  3. Step 3: Cross multiply
    18,174.58x = 25,054.63 × 12,031.99
  4. Step 4: Simplify right side
    18,174.58x = 301,456,872.18
  5. Step 5: Solve for x
    x = 301,456,872.18/18,174.58
  6. Step 6: Final answer
    x = 16,586.74

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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.