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Finding the Fourth Proportional to 11,954.88, 17,916.88 and 9,968.15

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Solution

The fourth proportional to 11,954.88, 17,916.88 and 9,968.15 is: 14,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.88 : 17,916.88 = 9,968.15 : x
  2. Step 2: Convert to fraction form
    11,954.88/17,916.88 = 9,968.15/x
  3. Step 3: Cross multiply
    11,954.88x = 17,916.88 × 9,968.15
  4. Step 4: Simplify right side
    11,954.88x = 178,598,147.37
  5. Step 5: Solve for x
    x = 178,598,147.37/11,954.88
  6. Step 6: Final answer
    x = 14,939.35

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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.