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Finding the Fourth Proportional to 5,486.60, 8,232.60 and 4,169.90

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Solution

The fourth proportional to 5,486.60, 8,232.60 and 4,169.90 is: 6,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.60 : 8,232.60 = 4,169.90 : x
  2. Step 2: Convert to fraction form
    5,486.60/8,232.60 = 4,169.90/x
  3. Step 3: Cross multiply
    5,486.60x = 8,232.60 × 4,169.90
  4. Step 4: Simplify right side
    5,486.60x = 34,329,118.74
  5. Step 5: Solve for x
    x = 34,329,118.74/5,486.60
  6. Step 6: Final answer
    x = 6,256.90

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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.