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Finding the Fourth Proportional to 37,710.50, 52,042.11 and 20,943.50

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Solution

The fourth proportional to 37,710.50, 52,042.11 and 20,943.50 is: 28,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,710.50 : 52,042.11 = 20,943.50 : x
  2. Step 2: Convert to fraction form
    37,710.50/52,042.11 = 20,943.50/x
  3. Step 3: Cross multiply
    37,710.50x = 52,042.11 × 20,943.50
  4. Step 4: Simplify right side
    37,710.50x = 1,089,943,930.79
  5. Step 5: Solve for x
    x = 1,089,943,930.79/37,710.50
  6. Step 6: Final answer
    x = 28,902.93

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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.