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Finding the Fourth Proportional to 17,671.70, 26,472.16 and 10,647.80

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Solution

The fourth proportional to 17,671.70, 26,472.16 and 10,647.80 is: 15,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,671.70 : 26,472.16 = 10,647.80 : x
  2. Step 2: Convert to fraction form
    17,671.70/26,472.16 = 10,647.80/x
  3. Step 3: Cross multiply
    17,671.70x = 26,472.16 × 10,647.80
  4. Step 4: Simplify right side
    17,671.70x = 281,870,265.25
  5. Step 5: Solve for x
    x = 281,870,265.25/17,671.70
  6. Step 6: Final answer
    x = 15,950.38

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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.