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Finding the Fourth Proportional to 20,597.77, 30,899.06 and 7,456.33

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Solution

The fourth proportional to 20,597.77, 30,899.06 and 7,456.33 is: 11,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.77 : 30,899.06 = 7,456.33 : x
  2. Step 2: Convert to fraction form
    20,597.77/30,899.06 = 7,456.33/x
  3. Step 3: Cross multiply
    20,597.77x = 30,899.06 × 7,456.33
  4. Step 4: Simplify right side
    20,597.77x = 230,393,588.05
  5. Step 5: Solve for x
    x = 230,393,588.05/20,597.77
  6. Step 6: Final answer
    x = 11,185.37

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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.