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Finding the Fourth Proportional to 52,495.88, 78,759.72 and 18,757.49

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Solution

The fourth proportional to 52,495.88, 78,759.72 and 18,757.49 is: 28,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,495.88 : 78,759.72 = 18,757.49 : x
  2. Step 2: Convert to fraction form
    52,495.88/78,759.72 = 18,757.49/x
  3. Step 3: Cross multiply
    52,495.88x = 78,759.72 × 18,757.49
  4. Step 4: Simplify right side
    52,495.88x = 1,477,334,266.50
  5. Step 5: Solve for x
    x = 1,477,334,266.50/52,495.88
  6. Step 6: Final answer
    x = 28,141.91

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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.