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Finding the Fourth Proportional to 5,859.88, 8,086.76 and 3,207.40

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Solution

The fourth proportional to 5,859.88, 8,086.76 and 3,207.40 is: 4,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.88 : 8,086.76 = 3,207.40 : x
  2. Step 2: Convert to fraction form
    5,859.88/8,086.76 = 3,207.40/x
  3. Step 3: Cross multiply
    5,859.88x = 8,086.76 × 3,207.40
  4. Step 4: Simplify right side
    5,859.88x = 25,937,474.02
  5. Step 5: Solve for x
    x = 25,937,474.02/5,859.88
  6. Step 6: Final answer
    x = 4,426.28

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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.