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Finding the Fourth Proportional to 40,543.88, 55,949.94 and 22,639.14

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Solution

The fourth proportional to 40,543.88, 55,949.94 and 22,639.14 is: 31,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,543.88 : 55,949.94 = 22,639.14 : x
  2. Step 2: Convert to fraction form
    40,543.88/55,949.94 = 22,639.14/x
  3. Step 3: Cross multiply
    40,543.88x = 55,949.94 × 22,639.14
  4. Step 4: Simplify right side
    40,543.88x = 1,266,658,524.65
  5. Step 5: Solve for x
    x = 1,266,658,524.65/40,543.88
  6. Step 6: Final answer
    x = 31,241.67

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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.