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Finding the Fourth Proportional to 57,676.32, 86,514.48 and 13,900.32

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Solution

The fourth proportional to 57,676.32, 86,514.48 and 13,900.32 is: 20,850.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,676.32 : 86,514.48 = 13,900.32 : x
  2. Step 2: Convert to fraction form
    57,676.32/86,514.48 = 13,900.32/x
  3. Step 3: Cross multiply
    57,676.32x = 86,514.48 × 13,900.32
  4. Step 4: Simplify right side
    57,676.32x = 1,202,578,956.63
  5. Step 5: Solve for x
    x = 1,202,578,956.63/57,676.32
  6. Step 6: Final answer
    x = 20,850.48

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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.