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Finding the Fourth Proportional to 69,244.35, 103,880.49 and 21,866.84

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Solution

The fourth proportional to 69,244.35, 103,880.49 and 21,866.84 is: 32,804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,244.35 : 103,880.49 = 21,866.84 : x
  2. Step 2: Convert to fraction form
    69,244.35/103,880.49 = 21,866.84/x
  3. Step 3: Cross multiply
    69,244.35x = 103,880.49 × 21,866.84
  4. Step 4: Simplify right side
    69,244.35x = 2,271,538,053.95
  5. Step 5: Solve for x
    x = 2,271,538,053.95/69,244.35
  6. Step 6: Final answer
    x = 32,804.67

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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.