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Finding the Fourth Proportional to 52,391.63, 78,603.84 and 33,692.78

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Solution

The fourth proportional to 52,391.63, 78,603.84 and 33,692.78 is: 50,549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,391.63 : 78,603.84 = 33,692.78 : x
  2. Step 2: Convert to fraction form
    52,391.63/78,603.84 = 33,692.78/x
  3. Step 3: Cross multiply
    52,391.63x = 78,603.84 × 33,692.78
  4. Step 4: Simplify right side
    52,391.63x = 2,648,381,888.28
  5. Step 5: Solve for x
    x = 2,648,381,888.28/52,391.63
  6. Step 6: Final answer
    x = 50,549.71

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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.