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Finding the Fourth Proportional to 16,728.90, 25,093.35 and 7,488.42

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Solution

The fourth proportional to 16,728.90, 25,093.35 and 7,488.42 is: 11,232.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.90 : 25,093.35 = 7,488.42 : x
  2. Step 2: Convert to fraction form
    16,728.90/25,093.35 = 7,488.42/x
  3. Step 3: Cross multiply
    16,728.90x = 25,093.35 × 7,488.42
  4. Step 4: Simplify right side
    16,728.90x = 187,909,544.01
  5. Step 5: Solve for x
    x = 187,909,544.01/16,728.90
  6. Step 6: Final answer
    x = 11,232.63

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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.