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Finding the Fourth Proportional to 29,398.60, 44,082.78 and 8,619.40

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Solution

The fourth proportional to 29,398.60, 44,082.78 and 8,619.40 is: 12,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,398.60 : 44,082.78 = 8,619.40 : x
  2. Step 2: Convert to fraction form
    29,398.60/44,082.78 = 8,619.40/x
  3. Step 3: Cross multiply
    29,398.60x = 44,082.78 × 8,619.40
  4. Step 4: Simplify right side
    29,398.60x = 379,967,113.93
  5. Step 5: Solve for x
    x = 379,967,113.93/29,398.60
  6. Step 6: Final answer
    x = 12,924.67

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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.