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Finding the Fourth Proportional to 16,976.70, 25,454.79 and 7,110.90

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Solution

The fourth proportional to 16,976.70, 25,454.79 and 7,110.90 is: 10,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,976.70 : 25,454.79 = 7,110.90 : x
  2. Step 2: Convert to fraction form
    16,976.70/25,454.79 = 7,110.90/x
  3. Step 3: Cross multiply
    16,976.70x = 25,454.79 × 7,110.90
  4. Step 4: Simplify right side
    16,976.70x = 181,006,466.21
  5. Step 5: Solve for x
    x = 181,006,466.21/16,976.70
  6. Step 6: Final answer
    x = 10,662.05

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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.