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Finding the Fourth Proportional to 25,992.60, 35,847.90 and 20,017.56

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Solution

The fourth proportional to 25,992.60, 35,847.90 and 20,017.56 is: 27,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,992.60 : 35,847.90 = 20,017.56 : x
  2. Step 2: Convert to fraction form
    25,992.60/35,847.90 = 20,017.56/x
  3. Step 3: Cross multiply
    25,992.60x = 35,847.90 × 20,017.56
  4. Step 4: Simplify right side
    25,992.60x = 717,587,489.12
  5. Step 5: Solve for x
    x = 717,587,489.12/25,992.60
  6. Step 6: Final answer
    x = 27,607.38

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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.