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Finding the Fourth Proportional to 11,274.56, 15,560.05 and 7,025.97

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Solution

The fourth proportional to 11,274.56, 15,560.05 and 7,025.97 is: 9,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.56 : 15,560.05 = 7,025.97 : x
  2. Step 2: Convert to fraction form
    11,274.56/15,560.05 = 7,025.97/x
  3. Step 3: Cross multiply
    11,274.56x = 15,560.05 × 7,025.97
  4. Step 4: Simplify right side
    11,274.56x = 109,324,444.50
  5. Step 5: Solve for x
    x = 109,324,444.50/11,274.56
  6. Step 6: Final answer
    x = 9,696.56

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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.