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Finding the Fourth Proportional to 5,881.25, 8,116.25 and 3,228.64

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Solution

The fourth proportional to 5,881.25, 8,116.25 and 3,228.64 is: 4,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.25 : 8,116.25 = 3,228.64 : x
  2. Step 2: Convert to fraction form
    5,881.25/8,116.25 = 3,228.64/x
  3. Step 3: Cross multiply
    5,881.25x = 8,116.25 × 3,228.64
  4. Step 4: Simplify right side
    5,881.25x = 26,204,412.97
  5. Step 5: Solve for x
    x = 26,204,412.97/5,881.25
  6. Step 6: Final answer
    x = 4,455.58

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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.