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Finding the Fourth Proportional to 53,559.56, 73,912 and 29,686

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Solution

The fourth proportional to 53,559.56, 73,912 and 29,686 is: 40,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,559.56 : 73,912 = 29,686 : x
  2. Step 2: Convert to fraction form
    53,559.56/73,912 = 29,686/x
  3. Step 3: Cross multiply
    53,559.56x = 73,912 × 29,686
  4. Step 4: Simplify right side
    53,559.56x = 2,194,151,632
  5. Step 5: Solve for x
    x = 2,194,151,632/53,559.56
  6. Step 6: Final answer
    x = 40,966.57

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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.