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Finding the Fourth Proportional to 23,902.98, 35,861.94 and 18,655.89

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Solution

The fourth proportional to 23,902.98, 35,861.94 and 18,655.89 is: 27,989.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,902.98 : 35,861.94 = 18,655.89 : x
  2. Step 2: Convert to fraction form
    23,902.98/35,861.94 = 18,655.89/x
  3. Step 3: Cross multiply
    23,902.98x = 35,861.94 × 18,655.89
  4. Step 4: Simplify right side
    23,902.98x = 669,036,407.83
  5. Step 5: Solve for x
    x = 669,036,407.83/23,902.98
  6. Step 6: Final answer
    x = 27,989.67

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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.