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Finding the Fourth Proportional to 26,492.80, 39,739.20 and 14,051.20

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Solution

The fourth proportional to 26,492.80, 39,739.20 and 14,051.20 is: 21,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,492.80 : 39,739.20 = 14,051.20 : x
  2. Step 2: Convert to fraction form
    26,492.80/39,739.20 = 14,051.20/x
  3. Step 3: Cross multiply
    26,492.80x = 39,739.20 × 14,051.20
  4. Step 4: Simplify right side
    26,492.80x = 558,383,447.04
  5. Step 5: Solve for x
    x = 558,383,447.04/26,492.80
  6. Step 6: Final answer
    x = 21,076.80

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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.