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Finding the Fourth Proportional to 17,639.70, 26,452.71 and 8,868.48

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Solution

The fourth proportional to 17,639.70, 26,452.71 and 8,868.48 is: 13,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,639.70 : 26,452.71 = 8,868.48 : x
  2. Step 2: Convert to fraction form
    17,639.70/26,452.71 = 8,868.48/x
  3. Step 3: Cross multiply
    17,639.70x = 26,452.71 × 8,868.48
  4. Step 4: Simplify right side
    17,639.70x = 234,595,329.58
  5. Step 5: Solve for x
    x = 234,595,329.58/17,639.70
  6. Step 6: Final answer
    x = 13,299.28

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1.5x scale

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.