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Finding the Fourth Proportional to 18,125.19, 27,192.11 and 7,737.75

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Solution

The fourth proportional to 18,125.19, 27,192.11 and 7,737.75 is: 11,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.19 : 27,192.11 = 7,737.75 : x
  2. Step 2: Convert to fraction form
    18,125.19/27,192.11 = 7,737.75/x
  3. Step 3: Cross multiply
    18,125.19x = 27,192.11 × 7,737.75
  4. Step 4: Simplify right side
    18,125.19x = 210,405,710.46
  5. Step 5: Solve for x
    x = 210,405,710.46/18,125.19
  6. Step 6: Final answer
    x = 11,608.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.