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Finding the Fourth Proportional to 11,937.57, 17,904.99 and 3,173.16

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Solution

The fourth proportional to 11,937.57, 17,904.99 and 3,173.16 is: 4,759.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.57 : 17,904.99 = 3,173.16 : x
  2. Step 2: Convert to fraction form
    11,937.57/17,904.99 = 3,173.16/x
  3. Step 3: Cross multiply
    11,937.57x = 17,904.99 × 3,173.16
  4. Step 4: Simplify right side
    11,937.57x = 56,815,398.07
  5. Step 5: Solve for x
    x = 56,815,398.07/11,937.57
  6. Step 6: Final answer
    x = 4,759.38

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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.