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Finding the Fourth Proportional to 17,372.70, 23,976.81 and 9,821.34

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Solution

The fourth proportional to 17,372.70, 23,976.81 and 9,821.34 is: 13,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,372.70 : 23,976.81 = 9,821.34 : x
  2. Step 2: Convert to fraction form
    17,372.70/23,976.81 = 9,821.34/x
  3. Step 3: Cross multiply
    17,372.70x = 23,976.81 × 9,821.34
  4. Step 4: Simplify right side
    17,372.70x = 235,484,403.13
  5. Step 5: Solve for x
    x = 235,484,403.13/17,372.70
  6. Step 6: Final answer
    x = 13,554.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.