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Finding the Fourth Proportional to 47,750.80, 71,625.84 and 12,692.92

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Solution

The fourth proportional to 47,750.80, 71,625.84 and 12,692.92 is: 19,039.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,750.80 : 71,625.84 = 12,692.92 : x
  2. Step 2: Convert to fraction form
    47,750.80/71,625.84 = 12,692.92/x
  3. Step 3: Cross multiply
    47,750.80x = 71,625.84 × 12,692.92
  4. Step 4: Simplify right side
    47,750.80x = 909,141,057.05
  5. Step 5: Solve for x
    x = 909,141,057.05/47,750.80
  6. Step 6: Final answer
    x = 19,039.28

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1.5x scale

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.