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Finding the Fourth Proportional to 53,839.50, 80,762.49 and 16,903.50

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Solution

The fourth proportional to 53,839.50, 80,762.49 and 16,903.50 is: 25,356.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,839.50 : 80,762.49 = 16,903.50 : x
  2. Step 2: Convert to fraction form
    53,839.50/80,762.49 = 16,903.50/x
  3. Step 3: Cross multiply
    53,839.50x = 80,762.49 × 16,903.50
  4. Step 4: Simplify right side
    53,839.50x = 1,365,168,749.72
  5. Step 5: Solve for x
    x = 1,365,168,749.72/53,839.50
  6. Step 6: Final answer
    x = 25,356.27

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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.