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Finding the Fourth Proportional to 17,960.40, 26,927.80 and 6,862.80

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Solution

The fourth proportional to 17,960.40, 26,927.80 and 6,862.80 is: 10,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,960.40 : 26,927.80 = 6,862.80 : x
  2. Step 2: Convert to fraction form
    17,960.40/26,927.80 = 6,862.80/x
  3. Step 3: Cross multiply
    17,960.40x = 26,927.80 × 6,862.80
  4. Step 4: Simplify right side
    17,960.40x = 184,800,105.84
  5. Step 5: Solve for x
    x = 184,800,105.84/17,960.40
  6. Step 6: Final answer
    x = 10,289.31

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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.