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Finding the Fourth Proportional to 16,959.62, 23,415.94 and 12,973.80

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Solution

The fourth proportional to 16,959.62, 23,415.94 and 12,973.80 is: 17,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.62 : 23,415.94 = 12,973.80 : x
  2. Step 2: Convert to fraction form
    16,959.62/23,415.94 = 12,973.80/x
  3. Step 3: Cross multiply
    16,959.62x = 23,415.94 × 12,973.80
  4. Step 4: Simplify right side
    16,959.62x = 303,793,722.37
  5. Step 5: Solve for x
    x = 303,793,722.37/16,959.62
  6. Step 6: Final answer
    x = 17,912.77

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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.