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Finding the Fourth Proportional to 61,225.32, 91,821.18 and 16,841.64

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Solution

The fourth proportional to 61,225.32, 91,821.18 and 16,841.64 is: 25,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,225.32 : 91,821.18 = 16,841.64 : x
  2. Step 2: Convert to fraction form
    61,225.32/91,821.18 = 16,841.64/x
  3. Step 3: Cross multiply
    61,225.32x = 91,821.18 × 16,841.64
  4. Step 4: Simplify right side
    61,225.32x = 1,546,419,257.94
  5. Step 5: Solve for x
    x = 1,546,419,257.94/61,225.32
  6. Step 6: Final answer
    x = 25,257.84

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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.