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Finding the Fourth Proportional to 18,362.53, 27,543.80 and 11,772.37

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Solution

The fourth proportional to 18,362.53, 27,543.80 and 11,772.37 is: 17,658.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.53 : 27,543.80 = 11,772.37 : x
  2. Step 2: Convert to fraction form
    18,362.53/27,543.80 = 11,772.37/x
  3. Step 3: Cross multiply
    18,362.53x = 27,543.80 × 11,772.37
  4. Step 4: Simplify right side
    18,362.53x = 324,255,804.81
  5. Step 5: Solve for x
    x = 324,255,804.81/18,362.53
  6. Step 6: Final answer
    x = 17,658.56

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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.