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Finding the Fourth Proportional to 26,334.60, 39,405.90 and 19,422.60

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Solution

The fourth proportional to 26,334.60, 39,405.90 and 19,422.60 is: 29,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,334.60 : 39,405.90 = 19,422.60 : x
  2. Step 2: Convert to fraction form
    26,334.60/39,405.90 = 19,422.60/x
  3. Step 3: Cross multiply
    26,334.60x = 39,405.90 × 19,422.60
  4. Step 4: Simplify right side
    26,334.60x = 765,365,033.34
  5. Step 5: Solve for x
    x = 765,365,033.34/26,334.60
  6. Step 6: Final answer
    x = 29,063.10

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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.