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Finding the Fourth Proportional to 6,515.80, 9,773.66 and 3,228

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Solution

The fourth proportional to 6,515.80, 9,773.66 and 3,228 is: 4,841.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.80 : 9,773.66 = 3,228 : x
  2. Step 2: Convert to fraction form
    6,515.80/9,773.66 = 3,228/x
  3. Step 3: Cross multiply
    6,515.80x = 9,773.66 × 3,228
  4. Step 4: Simplify right side
    6,515.80x = 31,549,374.48
  5. Step 5: Solve for x
    x = 31,549,374.48/6,515.80
  6. Step 6: Final answer
    x = 4,841.98

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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.