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Finding the Fourth Proportional to 5,585.88, 8,365.86 and 5,391.48

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Solution

The fourth proportional to 5,585.88, 8,365.86 and 5,391.48 is: 8,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.88 : 8,365.86 = 5,391.48 : x
  2. Step 2: Convert to fraction form
    5,585.88/8,365.86 = 5,391.48/x
  3. Step 3: Cross multiply
    5,585.88x = 8,365.86 × 5,391.48
  4. Step 4: Simplify right side
    5,585.88x = 45,104,366.87
  5. Step 5: Solve for x
    x = 45,104,366.87/5,585.88
  6. Step 6: Final answer
    x = 8,074.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.