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Finding the Fourth Proportional to 8,020.60, 11,067.90 and 4,483

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Solution

The fourth proportional to 8,020.60, 11,067.90 and 4,483 is: 6,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.60 : 11,067.90 = 4,483 : x
  2. Step 2: Convert to fraction form
    8,020.60/11,067.90 = 4,483/x
  3. Step 3: Cross multiply
    8,020.60x = 11,067.90 × 4,483
  4. Step 4: Simplify right side
    8,020.60x = 49,617,395.70
  5. Step 5: Solve for x
    x = 49,617,395.70/8,020.60
  6. Step 6: Final answer
    x = 6,186.24

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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.