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Finding the Fourth Proportional to 26,813.94, 36,980.94 and 20,114.44

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Solution

The fourth proportional to 26,813.94, 36,980.94 and 20,114.44 is: 27,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,813.94 : 36,980.94 = 20,114.44 : x
  2. Step 2: Convert to fraction form
    26,813.94/36,980.94 = 20,114.44/x
  3. Step 3: Cross multiply
    26,813.94x = 36,980.94 × 20,114.44
  4. Step 4: Simplify right side
    26,813.94x = 743,850,898.77
  5. Step 5: Solve for x
    x = 743,850,898.77/26,813.94
  6. Step 6: Final answer
    x = 27,741.20

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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.