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Finding the Fourth Proportional to 34,490.96, 51,720.06 and 15,765.44

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Solution

The fourth proportional to 34,490.96, 51,720.06 and 15,765.44 is: 23,640.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,490.96 : 51,720.06 = 15,765.44 : x
  2. Step 2: Convert to fraction form
    34,490.96/51,720.06 = 15,765.44/x
  3. Step 3: Cross multiply
    34,490.96x = 51,720.06 × 15,765.44
  4. Step 4: Simplify right side
    34,490.96x = 815,389,502.73
  5. Step 5: Solve for x
    x = 815,389,502.73/34,490.96
  6. Step 6: Final answer
    x = 23,640.67

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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.