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Finding the Fourth Proportional to 20,504.68, 30,762.60 and 6,653.68

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Solution

The fourth proportional to 20,504.68, 30,762.60 and 6,653.68 is: 9,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.68 : 30,762.60 = 6,653.68 : x
  2. Step 2: Convert to fraction form
    20,504.68/30,762.60 = 6,653.68/x
  3. Step 3: Cross multiply
    20,504.68x = 30,762.60 × 6,653.68
  4. Step 4: Simplify right side
    20,504.68x = 204,684,496.37
  5. Step 5: Solve for x
    x = 204,684,496.37/20,504.68
  6. Step 6: Final answer
    x = 9,982.33

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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.