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Finding the Fourth Proportional to 61,394.81, 84,724.72 and 34,537.34

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Solution

The fourth proportional to 61,394.81, 84,724.72 and 34,537.34 is: 47,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,394.81 : 84,724.72 = 34,537.34 : x
  2. Step 2: Convert to fraction form
    61,394.81/84,724.72 = 34,537.34/x
  3. Step 3: Cross multiply
    61,394.81x = 84,724.72 × 34,537.34
  4. Step 4: Simplify right side
    61,394.81x = 2,926,166,076.55
  5. Step 5: Solve for x
    x = 2,926,166,076.55/61,394.81
  6. Step 6: Final answer
    x = 47,661.46

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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.