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Finding the Fourth Proportional to 5,865.54, 8,811.90 and 5,550.90

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Solution

The fourth proportional to 5,865.54, 8,811.90 and 5,550.90 is: 8,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865.54 : 8,811.90 = 5,550.90 : x
  2. Step 2: Convert to fraction form
    5,865.54/8,811.90 = 5,550.90/x
  3. Step 3: Cross multiply
    5,865.54x = 8,811.90 × 5,550.90
  4. Step 4: Simplify right side
    5,865.54x = 48,913,975.71
  5. Step 5: Solve for x
    x = 48,913,975.71/5,865.54
  6. Step 6: Final answer
    x = 8,339.21

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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.