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Finding the Fourth Proportional to 11,274.56, 15,549.44 and 8,448.56

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Solution

The fourth proportional to 11,274.56, 15,549.44 and 8,448.56 is: 11,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.56 : 15,549.44 = 8,448.56 : x
  2. Step 2: Convert to fraction form
    11,274.56/15,549.44 = 8,448.56/x
  3. Step 3: Cross multiply
    11,274.56x = 15,549.44 × 8,448.56
  4. Step 4: Simplify right side
    11,274.56x = 131,370,376.81
  5. Step 5: Solve for x
    x = 131,370,376.81/11,274.56
  6. Step 6: Final answer
    x = 11,651.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.