Home / 18,982.10-28,475.87-5,835.57

Finding the Fourth Proportional to 18,982.10, 28,475.87 and 5,835.57

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Solution

The fourth proportional to 18,982.10, 28,475.87 and 5,835.57 is: 8,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.10 : 28,475.87 = 5,835.57 : x
  2. Step 2: Convert to fraction form
    18,982.10/28,475.87 = 5,835.57/x
  3. Step 3: Cross multiply
    18,982.10x = 28,475.87 × 5,835.57
  4. Step 4: Simplify right side
    18,982.10x = 166,172,932.70
  5. Step 5: Solve for x
    x = 166,172,932.70/18,982.10
  6. Step 6: Final answer
    x = 8,754.19

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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.