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Finding the Fourth Proportional to 16,722.80, 23,093.05 and 10,764.80

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Solution

The fourth proportional to 16,722.80, 23,093.05 and 10,764.80 is: 14,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,722.80 : 23,093.05 = 10,764.80 : x
  2. Step 2: Convert to fraction form
    16,722.80/23,093.05 = 10,764.80/x
  3. Step 3: Cross multiply
    16,722.80x = 23,093.05 × 10,764.80
  4. Step 4: Simplify right side
    16,722.80x = 248,592,029.05
  5. Step 5: Solve for x
    x = 248,592,029.05/16,722.80
  6. Step 6: Final answer
    x = 14,865.45

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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.