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Finding the Fourth Proportional to 52,751.80, 79,130.26 and 17,213.06

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Solution

The fourth proportional to 52,751.80, 79,130.26 and 17,213.06 is: 25,820.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,751.80 : 79,130.26 = 17,213.06 : x
  2. Step 2: Convert to fraction form
    52,751.80/79,130.26 = 17,213.06/x
  3. Step 3: Cross multiply
    52,751.80x = 79,130.26 × 17,213.06
  4. Step 4: Simplify right side
    52,751.80x = 1,362,073,913.20
  5. Step 5: Solve for x
    x = 1,362,073,913.20/52,751.80
  6. Step 6: Final answer
    x = 25,820.43

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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.