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Finding the Fourth Proportional to 29,722.91, 44,556.46 and 9,987.67

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Solution

The fourth proportional to 29,722.91, 44,556.46 and 9,987.67 is: 14,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,722.91 : 44,556.46 = 9,987.67 : x
  2. Step 2: Convert to fraction form
    29,722.91/44,556.46 = 9,987.67/x
  3. Step 3: Cross multiply
    29,722.91x = 44,556.46 × 9,987.67
  4. Step 4: Simplify right side
    29,722.91x = 445,015,082.49
  5. Step 5: Solve for x
    x = 445,015,082.49/29,722.91
  6. Step 6: Final answer
    x = 14,972.12

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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.