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Finding the Fourth Proportional to 70,531.29, 97,333.92 and 38,699.37

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Solution

The fourth proportional to 70,531.29, 97,333.92 and 38,699.37 is: 53,405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,531.29 : 97,333.92 = 38,699.37 : x
  2. Step 2: Convert to fraction form
    70,531.29/97,333.92 = 38,699.37/x
  3. Step 3: Cross multiply
    70,531.29x = 97,333.92 × 38,699.37
  4. Step 4: Simplify right side
    70,531.29x = 3,766,761,383.63
  5. Step 5: Solve for x
    x = 3,766,761,383.63/70,531.29
  6. Step 6: Final answer
    x = 53,405.54

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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.