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Finding the Fourth Proportional to 53,846.60, 80,672.70 and 47,625.80

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Solution

The fourth proportional to 53,846.60, 80,672.70 and 47,625.80 is: 71,352.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,846.60 : 80,672.70 = 47,625.80 : x
  2. Step 2: Convert to fraction form
    53,846.60/80,672.70 = 47,625.80/x
  3. Step 3: Cross multiply
    53,846.60x = 80,672.70 × 47,625.80
  4. Step 4: Simplify right side
    53,846.60x = 3,842,101,875.66
  5. Step 5: Solve for x
    x = 3,842,101,875.66/53,846.60
  6. Step 6: Final answer
    x = 71,352.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.