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Finding the Fourth Proportional to 16,868.21, 25,302.39 and 7,007.49

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Solution

The fourth proportional to 16,868.21, 25,302.39 and 7,007.49 is: 10,511.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,868.21 : 25,302.39 = 7,007.49 : x
  2. Step 2: Convert to fraction form
    16,868.21/25,302.39 = 7,007.49/x
  3. Step 3: Cross multiply
    16,868.21x = 25,302.39 × 7,007.49
  4. Step 4: Simplify right side
    16,868.21x = 177,306,244.90
  5. Step 5: Solve for x
    x = 177,306,244.90/16,868.21
  6. Step 6: Final answer
    x = 10,511.27

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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.