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Finding the Fourth Proportional to 26,796.80, 40,155.60 and 19,416.80

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Solution

The fourth proportional to 26,796.80, 40,155.60 and 19,416.80 is: 29,096.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,796.80 : 40,155.60 = 19,416.80 : x
  2. Step 2: Convert to fraction form
    26,796.80/40,155.60 = 19,416.80/x
  3. Step 3: Cross multiply
    26,796.80x = 40,155.60 × 19,416.80
  4. Step 4: Simplify right side
    26,796.80x = 779,693,254.08
  5. Step 5: Solve for x
    x = 779,693,254.08/26,796.80
  6. Step 6: Final answer
    x = 29,096.51

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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.