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Finding the Fourth Proportional to 7,015.70, 10,523.46 and 2,018.20

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Solution

The fourth proportional to 7,015.70, 10,523.46 and 2,018.20 is: 3,027.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.70 : 10,523.46 = 2,018.20 : x
  2. Step 2: Convert to fraction form
    7,015.70/10,523.46 = 2,018.20/x
  3. Step 3: Cross multiply
    7,015.70x = 10,523.46 × 2,018.20
  4. Step 4: Simplify right side
    7,015.70x = 21,238,394.35
  5. Step 5: Solve for x
    x = 21,238,394.35/7,015.70
  6. Step 6: Final answer
    x = 3,027.27

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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.