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Finding the Fourth Proportional to 29,400.60, 44,085.78 and 8,621.40

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Solution

The fourth proportional to 29,400.60, 44,085.78 and 8,621.40 is: 12,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.60 : 44,085.78 = 8,621.40 : x
  2. Step 2: Convert to fraction form
    29,400.60/44,085.78 = 8,621.40/x
  3. Step 3: Cross multiply
    29,400.60x = 44,085.78 × 8,621.40
  4. Step 4: Simplify right side
    29,400.60x = 380,081,143.69
  5. Step 5: Solve for x
    x = 380,081,143.69/29,400.60
  6. Step 6: Final answer
    x = 12,927.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.