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Finding the Fourth Proportional to 16,846.70, 25,249.80 and 6,980.90

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Solution

The fourth proportional to 16,846.70, 25,249.80 and 6,980.90 is: 10,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,846.70 : 25,249.80 = 6,980.90 : x
  2. Step 2: Convert to fraction form
    16,846.70/25,249.80 = 6,980.90/x
  3. Step 3: Cross multiply
    16,846.70x = 25,249.80 × 6,980.90
  4. Step 4: Simplify right side
    16,846.70x = 176,266,328.82
  5. Step 5: Solve for x
    x = 176,266,328.82/16,846.70
  6. Step 6: Final answer
    x = 10,462.96

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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.