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Finding the Fourth Proportional to 26,881.80, 40,245.90 and 23,809.80

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Solution

The fourth proportional to 26,881.80, 40,245.90 and 23,809.80 is: 35,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,881.80 : 40,245.90 = 23,809.80 : x
  2. Step 2: Convert to fraction form
    26,881.80/40,245.90 = 23,809.80/x
  3. Step 3: Cross multiply
    26,881.80x = 40,245.90 × 23,809.80
  4. Step 4: Simplify right side
    26,881.80x = 958,246,829.82
  5. Step 5: Solve for x
    x = 958,246,829.82/26,881.80
  6. Step 6: Final answer
    x = 35,646.68

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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.