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Finding the Fourth Proportional to 34,751.20, 52,126.80 and 19,004.80

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Solution

The fourth proportional to 34,751.20, 52,126.80 and 19,004.80 is: 28,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,751.20 : 52,126.80 = 19,004.80 : x
  2. Step 2: Convert to fraction form
    34,751.20/52,126.80 = 19,004.80/x
  3. Step 3: Cross multiply
    34,751.20x = 52,126.80 × 19,004.80
  4. Step 4: Simplify right side
    34,751.20x = 990,659,408.64
  5. Step 5: Solve for x
    x = 990,659,408.64/34,751.20
  6. Step 6: Final answer
    x = 28,507.20

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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.