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Finding the Fourth Proportional to 18,737.33, 25,857.07 and 10,239.08

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Solution

The fourth proportional to 18,737.33, 25,857.07 and 10,239.08 is: 14,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.33 : 25,857.07 = 10,239.08 : x
  2. Step 2: Convert to fraction form
    18,737.33/25,857.07 = 10,239.08/x
  3. Step 3: Cross multiply
    18,737.33x = 25,857.07 × 10,239.08
  4. Step 4: Simplify right side
    18,737.33x = 264,752,453.41
  5. Step 5: Solve for x
    x = 264,752,453.41/18,737.33
  6. Step 6: Final answer
    x = 14,129.68

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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.