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Finding the Fourth Proportional to 29,676.56, 44,514.84 and 12,139.28

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Solution

The fourth proportional to 29,676.56, 44,514.84 and 12,139.28 is: 18,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,676.56 : 44,514.84 = 12,139.28 : x
  2. Step 2: Convert to fraction form
    29,676.56/44,514.84 = 12,139.28/x
  3. Step 3: Cross multiply
    29,676.56x = 44,514.84 × 12,139.28
  4. Step 4: Simplify right side
    29,676.56x = 540,378,106.92
  5. Step 5: Solve for x
    x = 540,378,106.92/29,676.56
  6. Step 6: Final answer
    x = 18,208.92

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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.