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Finding the Fourth Proportional to 26,816.80, 40,186.80 and 19,741.60

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Solution

The fourth proportional to 26,816.80, 40,186.80 and 19,741.60 is: 29,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,816.80 : 40,186.80 = 19,741.60 : x
  2. Step 2: Convert to fraction form
    26,816.80/40,186.80 = 19,741.60/x
  3. Step 3: Cross multiply
    26,816.80x = 40,186.80 × 19,741.60
  4. Step 4: Simplify right side
    26,816.80x = 793,351,730.88
  5. Step 5: Solve for x
    x = 793,351,730.88/26,816.80
  6. Step 6: Final answer
    x = 29,584.13

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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.