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Finding the Fourth Proportional to 61,397.36, 84,723.96 and 34,538.48

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Solution

The fourth proportional to 61,397.36, 84,723.96 and 34,538.48 is: 47,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,397.36 : 84,723.96 = 34,538.48 : x
  2. Step 2: Convert to fraction form
    61,397.36/84,723.96 = 34,538.48/x
  3. Step 3: Cross multiply
    61,397.36x = 84,723.96 × 34,538.48
  4. Step 4: Simplify right side
    61,397.36x = 2,926,236,797.98
  5. Step 5: Solve for x
    x = 2,926,236,797.98/61,397.36
  6. Step 6: Final answer
    x = 47,660.63

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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.