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Finding the Fourth Proportional to 40,095, 55,331.90 and 22,189.54

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Solution

The fourth proportional to 40,095, 55,331.90 and 22,189.54 is: 30,622.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,095 : 55,331.90 = 22,189.54 : x
  2. Step 2: Convert to fraction form
    40,095/55,331.90 = 22,189.54/x
  3. Step 3: Cross multiply
    40,095x = 55,331.90 × 22,189.54
  4. Step 4: Simplify right side
    40,095x = 1,227,789,408.33
  5. Step 5: Solve for x
    x = 1,227,789,408.33/40,095
  6. Step 6: Final answer
    x = 30,622.01

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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.