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Finding the Fourth Proportional to 9,968.40, 14,954.40 and 3,393.36

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Solution

The fourth proportional to 9,968.40, 14,954.40 and 3,393.36 is: 5,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968.40 : 14,954.40 = 3,393.36 : x
  2. Step 2: Convert to fraction form
    9,968.40/14,954.40 = 3,393.36/x
  3. Step 3: Cross multiply
    9,968.40x = 14,954.40 × 3,393.36
  4. Step 4: Simplify right side
    9,968.40x = 50,745,662.78
  5. Step 5: Solve for x
    x = 50,745,662.78/9,968.40
  6. Step 6: Final answer
    x = 5,090.65

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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.