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Finding the Fourth Proportional to 29,154.40, 43,730.99 and 8,377.90

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Solution

The fourth proportional to 29,154.40, 43,730.99 and 8,377.90 is: 12,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,154.40 : 43,730.99 = 8,377.90 : x
  2. Step 2: Convert to fraction form
    29,154.40/43,730.99 = 8,377.90/x
  3. Step 3: Cross multiply
    29,154.40x = 43,730.99 × 8,377.90
  4. Step 4: Simplify right side
    29,154.40x = 366,373,741.32
  5. Step 5: Solve for x
    x = 366,373,741.32/29,154.40
  6. Step 6: Final answer
    x = 12,566.67

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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.