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Finding the Fourth Proportional to 5,858.85, 8,079.08 and 3,866.79

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Solution

The fourth proportional to 5,858.85, 8,079.08 and 3,866.79 is: 5,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.85 : 8,079.08 = 3,866.79 : x
  2. Step 2: Convert to fraction form
    5,858.85/8,079.08 = 3,866.79/x
  3. Step 3: Cross multiply
    5,858.85x = 8,079.08 × 3,866.79
  4. Step 4: Simplify right side
    5,858.85x = 31,240,086.42
  5. Step 5: Solve for x
    x = 31,240,086.42/5,858.85
  6. Step 6: Final answer
    x = 5,332.12

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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.