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Finding the Fourth Proportional to 30,951.54, 42,714.09 and 17,522.55

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Solution

The fourth proportional to 30,951.54, 42,714.09 and 17,522.55 is: 24,181.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951.54 : 42,714.09 = 17,522.55 : x
  2. Step 2: Convert to fraction form
    30,951.54/42,714.09 = 17,522.55/x
  3. Step 3: Cross multiply
    30,951.54x = 42,714.09 × 17,522.55
  4. Step 4: Simplify right side
    30,951.54x = 748,459,777.73
  5. Step 5: Solve for x
    x = 748,459,777.73/30,951.54
  6. Step 6: Final answer
    x = 24,181.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.