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Finding the Fourth Proportional to 18,793.81, 25,933.93 and 10,835.56

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Solution

The fourth proportional to 18,793.81, 25,933.93 and 10,835.56 is: 14,952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.81 : 25,933.93 = 10,835.56 : x
  2. Step 2: Convert to fraction form
    18,793.81/25,933.93 = 10,835.56/x
  3. Step 3: Cross multiply
    18,793.81x = 25,933.93 × 10,835.56
  4. Step 4: Simplify right side
    18,793.81x = 281,008,654.55
  5. Step 5: Solve for x
    x = 281,008,654.55/18,793.81
  6. Step 6: Final answer
    x = 14,952.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.