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Finding the Fourth Proportional to 56,676.74, 85,018.15 and 17,230.86

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Solution

The fourth proportional to 56,676.74, 85,018.15 and 17,230.86 is: 25,847.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,676.74 : 85,018.15 = 17,230.86 : x
  2. Step 2: Convert to fraction form
    56,676.74/85,018.15 = 17,230.86/x
  3. Step 3: Cross multiply
    56,676.74x = 85,018.15 × 17,230.86
  4. Step 4: Simplify right side
    56,676.74x = 1,464,935,840.11
  5. Step 5: Solve for x
    x = 1,464,935,840.11/56,676.74
  6. Step 6: Final answer
    x = 25,847.21

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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.