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Finding the Fourth Proportional to 26,890.80, 40,259.40 and 23,818.80

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Solution

The fourth proportional to 26,890.80, 40,259.40 and 23,818.80 is: 35,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,890.80 : 40,259.40 = 23,818.80 : x
  2. Step 2: Convert to fraction form
    26,890.80/40,259.40 = 23,818.80/x
  3. Step 3: Cross multiply
    26,890.80x = 40,259.40 × 23,818.80
  4. Step 4: Simplify right side
    26,890.80x = 958,930,596.72
  5. Step 5: Solve for x
    x = 958,930,596.72/26,890.80
  6. Step 6: Final answer
    x = 35,660.17

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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.