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Finding the Fourth Proportional to 5,859.85, 8,080.45 and 3,867.79

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Solution

The fourth proportional to 5,859.85, 8,080.45 and 3,867.79 is: 5,333.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.85 : 8,080.45 = 3,867.79 : x
  2. Step 2: Convert to fraction form
    5,859.85/8,080.45 = 3,867.79/x
  3. Step 3: Cross multiply
    5,859.85x = 8,080.45 × 3,867.79
  4. Step 4: Simplify right side
    5,859.85x = 31,253,483.71
  5. Step 5: Solve for x
    x = 31,253,483.71/5,859.85
  6. Step 6: Final answer
    x = 5,333.50

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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.