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Finding the Fourth Proportional to 57,999.22, 86,999.34 and 22,938.87

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Solution

The fourth proportional to 57,999.22, 86,999.34 and 22,938.87 is: 34,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,999.22 : 86,999.34 = 22,938.87 : x
  2. Step 2: Convert to fraction form
    57,999.22/86,999.34 = 22,938.87/x
  3. Step 3: Cross multiply
    57,999.22x = 86,999.34 × 22,938.87
  4. Step 4: Simplify right side
    57,999.22x = 1,995,666,435.65
  5. Step 5: Solve for x
    x = 1,995,666,435.65/57,999.22
  6. Step 6: Final answer
    x = 34,408.51

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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.