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Finding the Fourth Proportional to 26,842.80, 40,259.40 and 16,964.40

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Solution

The fourth proportional to 26,842.80, 40,259.40 and 16,964.40 is: 25,443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,842.80 : 40,259.40 = 16,964.40 : x
  2. Step 2: Convert to fraction form
    26,842.80/40,259.40 = 16,964.40/x
  3. Step 3: Cross multiply
    26,842.80x = 40,259.40 × 16,964.40
  4. Step 4: Simplify right side
    26,842.80x = 682,976,565.36
  5. Step 5: Solve for x
    x = 682,976,565.36/26,842.80
  6. Step 6: Final answer
    x = 25,443.57

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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.