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Finding the Fourth Proportional to 58,170.86, 87,256.28 and 16,617.86

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Solution

The fourth proportional to 58,170.86, 87,256.28 and 16,617.86 is: 24,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,170.86 : 87,256.28 = 16,617.86 : x
  2. Step 2: Convert to fraction form
    58,170.86/87,256.28 = 16,617.86/x
  3. Step 3: Cross multiply
    58,170.86x = 87,256.28 × 16,617.86
  4. Step 4: Simplify right side
    58,170.86x = 1,450,012,208.88
  5. Step 5: Solve for x
    x = 1,450,012,208.88/58,170.86
  6. Step 6: Final answer
    x = 24,926.78

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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.