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Finding the Fourth Proportional to 61,053.14, 91,592.80 and 18,932.31

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Solution

The fourth proportional to 61,053.14, 91,592.80 and 18,932.31 is: 28,402.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,053.14 : 91,592.80 = 18,932.31 : x
  2. Step 2: Convert to fraction form
    61,053.14/91,592.80 = 18,932.31/x
  3. Step 3: Cross multiply
    61,053.14x = 91,592.80 × 18,932.31
  4. Step 4: Simplify right side
    61,053.14x = 1,734,063,236.04
  5. Step 5: Solve for x
    x = 1,734,063,236.04/61,053.14
  6. Step 6: Final answer
    x = 28,402.53

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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.