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Finding the Fourth Proportional to 58,164.64, 87,245.12 and 16,611.60

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Solution

The fourth proportional to 58,164.64, 87,245.12 and 16,611.60 is: 24,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,164.64 : 87,245.12 = 16,611.60 : x
  2. Step 2: Convert to fraction form
    58,164.64/87,245.12 = 16,611.60/x
  3. Step 3: Cross multiply
    58,164.64x = 87,245.12 × 16,611.60
  4. Step 4: Simplify right side
    58,164.64x = 1,449,281,035.39
  5. Step 5: Solve for x
    x = 1,449,281,035.39/58,164.64
  6. Step 6: Final answer
    x = 24,916.87

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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.