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Finding the Fourth Proportional to 53,938.56, 80,878.56 and 29,008.32

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Solution

The fourth proportional to 53,938.56, 80,878.56 and 29,008.32 is: 43,496.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,938.56 : 80,878.56 = 29,008.32 : x
  2. Step 2: Convert to fraction form
    53,938.56/80,878.56 = 29,008.32/x
  3. Step 3: Cross multiply
    53,938.56x = 80,878.56 × 29,008.32
  4. Step 4: Simplify right side
    53,938.56x = 2,346,151,149.62
  5. Step 5: Solve for x
    x = 2,346,151,149.62/53,938.56
  6. Step 6: Final answer
    x = 43,496.73

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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.