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Finding the Fourth Proportional to 61,254.76, 84,531.62 and 34,399.88

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Solution

The fourth proportional to 61,254.76, 84,531.62 and 34,399.88 is: 47,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,254.76 : 84,531.62 = 34,399.88 : x
  2. Step 2: Convert to fraction form
    61,254.76/84,531.62 = 34,399.88/x
  3. Step 3: Cross multiply
    61,254.76x = 84,531.62 × 34,399.88
  4. Step 4: Simplify right side
    61,254.76x = 2,907,877,584.21
  5. Step 5: Solve for x
    x = 2,907,877,584.21/61,254.76
  6. Step 6: Final answer
    x = 47,471.86

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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.