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Finding the Fourth Proportional to 73,676.40, 110,514.60 and 18,272.40

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Solution

The fourth proportional to 73,676.40, 110,514.60 and 18,272.40 is: 27,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,676.40 : 110,514.60 = 18,272.40 : x
  2. Step 2: Convert to fraction form
    73,676.40/110,514.60 = 18,272.40/x
  3. Step 3: Cross multiply
    73,676.40x = 110,514.60 × 18,272.40
  4. Step 4: Simplify right side
    73,676.40x = 2,019,366,977.04
  5. Step 5: Solve for x
    x = 2,019,366,977.04/73,676.40
  6. Step 6: Final answer
    x = 27,408.60

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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.