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Finding the Fourth Proportional to 5,393.30, 8,091.10 and 3,054.40

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Solution

The fourth proportional to 5,393.30, 8,091.10 and 3,054.40 is: 4,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.30 : 8,091.10 = 3,054.40 : x
  2. Step 2: Convert to fraction form
    5,393.30/8,091.10 = 3,054.40/x
  3. Step 3: Cross multiply
    5,393.30x = 8,091.10 × 3,054.40
  4. Step 4: Simplify right side
    5,393.30x = 24,713,455.84
  5. Step 5: Solve for x
    x = 24,713,455.84/5,393.30
  6. Step 6: Final answer
    x = 4,582.25

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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.