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Finding the Fourth Proportional to 7,747.84, 10,692.02 and 4,211.04

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Solution

The fourth proportional to 7,747.84, 10,692.02 and 4,211.04 is: 5,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.84 : 10,692.02 = 4,211.04 : x
  2. Step 2: Convert to fraction form
    7,747.84/10,692.02 = 4,211.04/x
  3. Step 3: Cross multiply
    7,747.84x = 10,692.02 × 4,211.04
  4. Step 4: Simplify right side
    7,747.84x = 45,024,523.90
  5. Step 5: Solve for x
    x = 45,024,523.90/7,747.84
  6. Step 6: Final answer
    x = 5,811.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.