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Finding the Fourth Proportional to 8,357.49, 12,536.11 and 3,361.15

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Solution

The fourth proportional to 8,357.49, 12,536.11 and 3,361.15 is: 5,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.49 : 12,536.11 = 3,361.15 : x
  2. Step 2: Convert to fraction form
    8,357.49/12,536.11 = 3,361.15/x
  3. Step 3: Cross multiply
    8,357.49x = 12,536.11 × 3,361.15
  4. Step 4: Simplify right side
    8,357.49x = 42,135,746.13
  5. Step 5: Solve for x
    x = 42,135,746.13/8,357.49
  6. Step 6: Final answer
    x = 5,041.67

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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.