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Finding the Fourth Proportional to 8,755.05, 12,082 and 4,776.25

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Solution

The fourth proportional to 8,755.05, 12,082 and 4,776.25 is: 6,591.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.05 : 12,082 = 4,776.25 : x
  2. Step 2: Convert to fraction form
    8,755.05/12,082 = 4,776.25/x
  3. Step 3: Cross multiply
    8,755.05x = 12,082 × 4,776.25
  4. Step 4: Simplify right side
    8,755.05x = 57,706,652.50
  5. Step 5: Solve for x
    x = 57,706,652.50/8,755.05
  6. Step 6: Final answer
    x = 6,591.24

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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.