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Finding the Fourth Proportional to 26,676.78, 36,813.06 and 14,739.42

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Solution

The fourth proportional to 26,676.78, 36,813.06 and 14,739.42 is: 20,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,676.78 : 36,813.06 = 14,739.42 : x
  2. Step 2: Convert to fraction form
    26,676.78/36,813.06 = 14,739.42/x
  3. Step 3: Cross multiply
    26,676.78x = 36,813.06 × 14,739.42
  4. Step 4: Simplify right side
    26,676.78x = 542,603,152.83
  5. Step 5: Solve for x
    x = 542,603,152.83/26,676.78
  6. Step 6: Final answer
    x = 20,339.90

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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.