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Finding the Fourth Proportional to 18,324.12, 27,483.94 and 7,798.37

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Solution

The fourth proportional to 18,324.12, 27,483.94 and 7,798.37 is: 11,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.12 : 27,483.94 = 7,798.37 : x
  2. Step 2: Convert to fraction form
    18,324.12/27,483.94 = 7,798.37/x
  3. Step 3: Cross multiply
    18,324.12x = 27,483.94 × 7,798.37
  4. Step 4: Simplify right side
    18,324.12x = 214,329,933.18
  5. Step 5: Solve for x
    x = 214,329,933.18/18,324.12
  6. Step 6: Final answer
    x = 11,696.60

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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.