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Finding the Fourth Proportional to 5,599.72, 7,728.06 and 3,241.90

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Solution

The fourth proportional to 5,599.72, 7,728.06 and 3,241.90 is: 4,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.72 : 7,728.06 = 3,241.90 : x
  2. Step 2: Convert to fraction form
    5,599.72/7,728.06 = 3,241.90/x
  3. Step 3: Cross multiply
    5,599.72x = 7,728.06 × 3,241.90
  4. Step 4: Simplify right side
    5,599.72x = 25,053,597.71
  5. Step 5: Solve for x
    x = 25,053,597.71/5,599.72
  6. Step 6: Final answer
    x = 4,474.08

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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.