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Finding the Fourth Proportional to 57,922.80, 86,720.36 and 36,810.48

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Solution

The fourth proportional to 57,922.80, 86,720.36 and 36,810.48 is: 55,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,922.80 : 86,720.36 = 36,810.48 : x
  2. Step 2: Convert to fraction form
    57,922.80/86,720.36 = 36,810.48/x
  3. Step 3: Cross multiply
    57,922.80x = 86,720.36 × 36,810.48
  4. Step 4: Simplify right side
    57,922.80x = 3,192,218,218.52
  5. Step 5: Solve for x
    x = 3,192,218,218.52/57,922.80
  6. Step 6: Final answer
    x = 55,111.60

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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.