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Finding the Fourth Proportional to 48,459.80, 72,692.10 and 25,131.80

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Solution

The fourth proportional to 48,459.80, 72,692.10 and 25,131.80 is: 37,698.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,459.80 : 72,692.10 = 25,131.80 : x
  2. Step 2: Convert to fraction form
    48,459.80/72,692.10 = 25,131.80/x
  3. Step 3: Cross multiply
    48,459.80x = 72,692.10 × 25,131.80
  4. Step 4: Simplify right side
    48,459.80x = 1,826,883,318.78
  5. Step 5: Solve for x
    x = 1,826,883,318.78/48,459.80
  6. Step 6: Final answer
    x = 37,698.94

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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.