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Finding the Fourth Proportional to 8,551.80, 11,801.43 and 4,774.75

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Solution

The fourth proportional to 8,551.80, 11,801.43 and 4,774.75 is: 6,589.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.80 : 11,801.43 = 4,774.75 : x
  2. Step 2: Convert to fraction form
    8,551.80/11,801.43 = 4,774.75/x
  3. Step 3: Cross multiply
    8,551.80x = 11,801.43 × 4,774.75
  4. Step 4: Simplify right side
    8,551.80x = 56,348,848.39
  5. Step 5: Solve for x
    x = 56,348,848.39/8,551.80
  6. Step 6: Final answer
    x = 6,589.12

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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.