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Finding the Fourth Proportional to 53,469.90, 73,806.92 and 30,817.92

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Solution

The fourth proportional to 53,469.90, 73,806.92 and 30,817.92 is: 42,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,469.90 : 73,806.92 = 30,817.92 : x
  2. Step 2: Convert to fraction form
    53,469.90/73,806.92 = 30,817.92/x
  3. Step 3: Cross multiply
    53,469.90x = 73,806.92 × 30,817.92
  4. Step 4: Simplify right side
    53,469.90x = 2,274,575,601.92
  5. Step 5: Solve for x
    x = 2,274,575,601.92/53,469.90
  6. Step 6: Final answer
    x = 42,539.37

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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.