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Finding the Fourth Proportional to 18,912.08, 26,097 and 10,951.76

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Solution

The fourth proportional to 18,912.08, 26,097 and 10,951.76 is: 15,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.08 : 26,097 = 10,951.76 : x
  2. Step 2: Convert to fraction form
    18,912.08/26,097 = 10,951.76/x
  3. Step 3: Cross multiply
    18,912.08x = 26,097 × 10,951.76
  4. Step 4: Simplify right side
    18,912.08x = 285,808,080.72
  5. Step 5: Solve for x
    x = 285,808,080.72/18,912.08
  6. Step 6: Final answer
    x = 15,112.46

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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.