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Finding the Fourth Proportional to 18,910.32, 26,095 and 10,951.92

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Solution

The fourth proportional to 18,910.32, 26,095 and 10,951.92 is: 15,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.32 : 26,095 = 10,951.92 : x
  2. Step 2: Convert to fraction form
    18,910.32/26,095 = 10,951.92/x
  3. Step 3: Cross multiply
    18,910.32x = 26,095 × 10,951.92
  4. Step 4: Simplify right side
    18,910.32x = 285,790,352.40
  5. Step 5: Solve for x
    x = 285,790,352.40/18,910.32
  6. Step 6: Final answer
    x = 15,112.93

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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.