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Finding the Fourth Proportional to 17,188.48, 25,774.08 and 7,960.96

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Solution

The fourth proportional to 17,188.48, 25,774.08 and 7,960.96 is: 11,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.48 : 25,774.08 = 7,960.96 : x
  2. Step 2: Convert to fraction form
    17,188.48/25,774.08 = 7,960.96/x
  3. Step 3: Cross multiply
    17,188.48x = 25,774.08 × 7,960.96
  4. Step 4: Simplify right side
    17,188.48x = 205,186,419.92
  5. Step 5: Solve for x
    x = 205,186,419.92/17,188.48
  6. Step 6: Final answer
    x = 11,937.44

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Similar ratio
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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.