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Finding the Fourth Proportional to 18,907.50, 26,092.38 and 10,950.15

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Solution

The fourth proportional to 18,907.50, 26,092.38 and 10,950.15 is: 15,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.50 : 26,092.38 = 10,950.15 : x
  2. Step 2: Convert to fraction form
    18,907.50/26,092.38 = 10,950.15/x
  3. Step 3: Cross multiply
    18,907.50x = 26,092.38 × 10,950.15
  4. Step 4: Simplify right side
    18,907.50x = 285,715,474.86
  5. Step 5: Solve for x
    x = 285,715,474.86/18,907.50
  6. Step 6: Final answer
    x = 15,111.22

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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.