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Finding the Fourth Proportional to 61,053.89, 91,593.93 and 18,933.06

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Solution

The fourth proportional to 61,053.89, 91,593.93 and 18,933.06 is: 28,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,053.89 : 91,593.93 = 18,933.06 : x
  2. Step 2: Convert to fraction form
    61,053.89/91,593.93 = 18,933.06/x
  3. Step 3: Cross multiply
    61,053.89x = 91,593.93 × 18,933.06
  4. Step 4: Simplify right side
    61,053.89x = 1,734,153,372.33
  5. Step 5: Solve for x
    x = 1,734,153,372.33/61,053.89
  6. Step 6: Final answer
    x = 28,403.65

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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.