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Finding the Fourth Proportional to 11,495.75, 17,243.63 and 3,287.75

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Solution

The fourth proportional to 11,495.75, 17,243.63 and 3,287.75 is: 4,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,495.75 : 17,243.63 = 3,287.75 : x
  2. Step 2: Convert to fraction form
    11,495.75/17,243.63 = 3,287.75/x
  3. Step 3: Cross multiply
    11,495.75x = 17,243.63 × 3,287.75
  4. Step 4: Simplify right side
    11,495.75x = 56,692,728.09
  5. Step 5: Solve for x
    x = 56,692,728.09/11,495.75
  6. Step 6: Final answer
    x = 4,931.63

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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.