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Finding the Fourth Proportional to 18,893.20, 26,073.50 and 10,933.90

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Solution

The fourth proportional to 18,893.20, 26,073.50 and 10,933.90 is: 15,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.20 : 26,073.50 = 10,933.90 : x
  2. Step 2: Convert to fraction form
    18,893.20/26,073.50 = 10,933.90/x
  3. Step 3: Cross multiply
    18,893.20x = 26,073.50 × 10,933.90
  4. Step 4: Simplify right side
    18,893.20x = 285,085,041.65
  5. Step 5: Solve for x
    x = 285,085,041.65/18,893.20
  6. Step 6: Final answer
    x = 15,089.29

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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.