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Finding the Fourth Proportional to 53,757.42, 80,636.04 and 16,821.42

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Solution

The fourth proportional to 53,757.42, 80,636.04 and 16,821.42 is: 25,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,757.42 : 80,636.04 = 16,821.42 : x
  2. Step 2: Convert to fraction form
    53,757.42/80,636.04 = 16,821.42/x
  3. Step 3: Cross multiply
    53,757.42x = 80,636.04 × 16,821.42
  4. Step 4: Simplify right side
    53,757.42x = 1,356,412,695.98
  5. Step 5: Solve for x
    x = 1,356,412,695.98/53,757.42
  6. Step 6: Final answer
    x = 25,232.10

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1.5x scale

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.