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Finding the Fourth Proportional to 18,596.40, 27,896.76 and 5,448.48

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Solution

The fourth proportional to 18,596.40, 27,896.76 and 5,448.48 is: 8,173.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.40 : 27,896.76 = 5,448.48 : x
  2. Step 2: Convert to fraction form
    18,596.40/27,896.76 = 5,448.48/x
  3. Step 3: Cross multiply
    18,596.40x = 27,896.76 × 5,448.48
  4. Step 4: Simplify right side
    18,596.40x = 151,994,938.92
  5. Step 5: Solve for x
    x = 151,994,938.92/18,596.40
  6. Step 6: Final answer
    x = 8,173.35

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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.