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Finding the Fourth Proportional to 53,748.42, 80,622.54 and 16,812.42

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Solution

The fourth proportional to 53,748.42, 80,622.54 and 16,812.42 is: 25,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,748.42 : 80,622.54 = 16,812.42 : x
  2. Step 2: Convert to fraction form
    53,748.42/80,622.54 = 16,812.42/x
  3. Step 3: Cross multiply
    53,748.42x = 80,622.54 × 16,812.42
  4. Step 4: Simplify right side
    53,748.42x = 1,355,460,003.95
  5. Step 5: Solve for x
    x = 1,355,460,003.95/53,748.42
  6. Step 6: Final answer
    x = 25,218.60

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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.