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Finding the Fourth Proportional to 18,907.47, 26,093.60 and 10,951.95

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Solution

The fourth proportional to 18,907.47, 26,093.60 and 10,951.95 is: 15,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.47 : 26,093.60 = 10,951.95 : x
  2. Step 2: Convert to fraction form
    18,907.47/26,093.60 = 10,951.95/x
  3. Step 3: Cross multiply
    18,907.47x = 26,093.60 × 10,951.95
  4. Step 4: Simplify right side
    18,907.47x = 285,775,747.76
  5. Step 5: Solve for x
    x = 285,775,747.76/18,907.47
  6. Step 6: Final answer
    x = 15,114.44

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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.