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Finding the Fourth Proportional to 26,762.70, 40,168.71 and 13,624.50

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Solution

The fourth proportional to 26,762.70, 40,168.71 and 13,624.50 is: 20,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,762.70 : 40,168.71 = 13,624.50 : x
  2. Step 2: Convert to fraction form
    26,762.70/40,168.71 = 13,624.50/x
  3. Step 3: Cross multiply
    26,762.70x = 40,168.71 × 13,624.50
  4. Step 4: Simplify right side
    26,762.70x = 547,278,589.40
  5. Step 5: Solve for x
    x = 547,278,589.40/26,762.70
  6. Step 6: Final answer
    x = 20,449.30

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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.