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Finding the Fourth Proportional to 42,609.44, 63,914.34 and 13,027.16

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Solution

The fourth proportional to 42,609.44, 63,914.34 and 13,027.16 is: 19,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,609.44 : 63,914.34 = 13,027.16 : x
  2. Step 2: Convert to fraction form
    42,609.44/63,914.34 = 13,027.16/x
  3. Step 3: Cross multiply
    42,609.44x = 63,914.34 × 13,027.16
  4. Step 4: Simplify right side
    42,609.44x = 832,622,333.47
  5. Step 5: Solve for x
    x = 832,622,333.47/42,609.44
  6. Step 6: Final answer
    x = 19,540.80

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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.