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Finding the Fourth Proportional to 26,794.60, 36,978.21 and 14,857.94

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Solution

The fourth proportional to 26,794.60, 36,978.21 and 14,857.94 is: 20,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,794.60 : 36,978.21 = 14,857.94 : x
  2. Step 2: Convert to fraction form
    26,794.60/36,978.21 = 14,857.94/x
  3. Step 3: Cross multiply
    26,794.60x = 36,978.21 × 14,857.94
  4. Step 4: Simplify right side
    26,794.60x = 549,420,025.49
  5. Step 5: Solve for x
    x = 549,420,025.49/26,794.60
  6. Step 6: Final answer
    x = 20,504.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.