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Finding the Fourth Proportional to 8,773.85, 12,103.67 and 6,380.10

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Solution

The fourth proportional to 8,773.85, 12,103.67 and 6,380.10 is: 8,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.85 : 12,103.67 = 6,380.10 : x
  2. Step 2: Convert to fraction form
    8,773.85/12,103.67 = 6,380.10/x
  3. Step 3: Cross multiply
    8,773.85x = 12,103.67 × 6,380.10
  4. Step 4: Simplify right side
    8,773.85x = 77,222,593.07
  5. Step 5: Solve for x
    x = 77,222,593.07/8,773.85
  6. Step 6: Final answer
    x = 8,801.45

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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.