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Finding the Fourth Proportional to 47,988.88, 71,991.77 and 16,391.54

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Solution

The fourth proportional to 47,988.88, 71,991.77 and 16,391.54 is: 24,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,988.88 : 71,991.77 = 16,391.54 : x
  2. Step 2: Convert to fraction form
    47,988.88/71,991.77 = 16,391.54/x
  3. Step 3: Cross multiply
    47,988.88x = 71,991.77 × 16,391.54
  4. Step 4: Simplify right side
    47,988.88x = 1,180,056,075.65
  5. Step 5: Solve for x
    x = 1,180,056,075.65/47,988.88
  6. Step 6: Final answer
    x = 24,590.20

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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.