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Finding the Fourth Proportional to 18,795.33, 28,192.64 and 7,553.24

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Solution

The fourth proportional to 18,795.33, 28,192.64 and 7,553.24 is: 11,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.33 : 28,192.64 = 7,553.24 : x
  2. Step 2: Convert to fraction form
    18,795.33/28,192.64 = 7,553.24/x
  3. Step 3: Cross multiply
    18,795.33x = 28,192.64 × 7,553.24
  4. Step 4: Simplify right side
    18,795.33x = 212,945,776.15
  5. Step 5: Solve for x
    x = 212,945,776.15/18,795.33
  6. Step 6: Final answer
    x = 11,329.72

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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.