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Finding the Fourth Proportional to 21,895.03, 32,847.35 and 7,105.44

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Solution

The fourth proportional to 21,895.03, 32,847.35 and 7,105.44 is: 10,659.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.03 : 32,847.35 = 7,105.44 : x
  2. Step 2: Convert to fraction form
    21,895.03/32,847.35 = 7,105.44/x
  3. Step 3: Cross multiply
    21,895.03x = 32,847.35 × 7,105.44
  4. Step 4: Simplify right side
    21,895.03x = 233,394,874.58
  5. Step 5: Solve for x
    x = 233,394,874.58/21,895.03
  6. Step 6: Final answer
    x = 10,659.72

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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.