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Finding the Fourth Proportional to 61,394.68, 84,724.54 and 34,537.21

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Solution

The fourth proportional to 61,394.68, 84,724.54 and 34,537.21 is: 47,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,394.68 : 84,724.54 = 34,537.21 : x
  2. Step 2: Convert to fraction form
    61,394.68/84,724.54 = 34,537.21/x
  3. Step 3: Cross multiply
    61,394.68x = 84,724.54 × 34,537.21
  4. Step 4: Simplify right side
    61,394.68x = 2,926,149,518.97
  5. Step 5: Solve for x
    x = 2,926,149,518.97/61,394.68
  6. Step 6: Final answer
    x = 47,661.28

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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.