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Finding the Fourth Proportional to 5,979.88, 8,254.20 and 5,349.30

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Solution

The fourth proportional to 5,979.88, 8,254.20 and 5,349.30 is: 7,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.88 : 8,254.20 = 5,349.30 : x
  2. Step 2: Convert to fraction form
    5,979.88/8,254.20 = 5,349.30/x
  3. Step 3: Cross multiply
    5,979.88x = 8,254.20 × 5,349.30
  4. Step 4: Simplify right side
    5,979.88x = 44,154,192.06
  5. Step 5: Solve for x
    x = 44,154,192.06/5,979.88
  6. Step 6: Final answer
    x = 7,383.79

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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.