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Finding the Fourth Proportional to 19,768.86, 29,652.48 and 6,620.22

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Solution

The fourth proportional to 19,768.86, 29,652.48 and 6,620.22 is: 9,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.86 : 29,652.48 = 6,620.22 : x
  2. Step 2: Convert to fraction form
    19,768.86/29,652.48 = 6,620.22/x
  3. Step 3: Cross multiply
    19,768.86x = 29,652.48 × 6,620.22
  4. Step 4: Simplify right side
    19,768.86x = 196,305,941.15
  5. Step 5: Solve for x
    x = 196,305,941.15/19,768.86
  6. Step 6: Final answer
    x = 9,930.06

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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.