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Finding the Fourth Proportional to 16,849.75, 25,264.90 and 7,489.75

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Solution

The fourth proportional to 16,849.75, 25,264.90 and 7,489.75 is: 11,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,849.75 : 25,264.90 = 7,489.75 : x
  2. Step 2: Convert to fraction form
    16,849.75/25,264.90 = 7,489.75/x
  3. Step 3: Cross multiply
    16,849.75x = 25,264.90 × 7,489.75
  4. Step 4: Simplify right side
    16,849.75x = 189,227,784.78
  5. Step 5: Solve for x
    x = 189,227,784.78/16,849.75
  6. Step 6: Final answer
    x = 11,230.30

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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.