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Finding the Fourth Proportional to 61,398.26, 84,722.74 and 34,540.22

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Solution

The fourth proportional to 61,398.26, 84,722.74 and 34,540.22 is: 47,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.26 : 84,722.74 = 34,540.22 : x
  2. Step 2: Convert to fraction form
    61,398.26/84,722.74 = 34,540.22/x
  3. Step 3: Cross multiply
    61,398.26x = 84,722.74 × 34,540.22
  4. Step 4: Simplify right side
    61,398.26x = 2,926,342,078.60
  5. Step 5: Solve for x
    x = 2,926,342,078.60/61,398.26
  6. Step 6: Final answer
    x = 47,661.65

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1.5x scale

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.