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Finding the Fourth Proportional to 29,115.42, 43,673.34 and 12,461.42

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Solution

The fourth proportional to 29,115.42, 43,673.34 and 12,461.42 is: 18,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,115.42 : 43,673.34 = 12,461.42 : x
  2. Step 2: Convert to fraction form
    29,115.42/43,673.34 = 12,461.42/x
  3. Step 3: Cross multiply
    29,115.42x = 43,673.34 × 12,461.42
  4. Step 4: Simplify right side
    29,115.42x = 544,231,832.54
  5. Step 5: Solve for x
    x = 544,231,832.54/29,115.42
  6. Step 6: Final answer
    x = 18,692.22

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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.