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Finding the Fourth Proportional to 5,709.96, 8,550.97 and 5,155.92

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Solution

The fourth proportional to 5,709.96, 8,550.97 and 5,155.92 is: 7,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.96 : 8,550.97 = 5,155.92 : x
  2. Step 2: Convert to fraction form
    5,709.96/8,550.97 = 5,155.92/x
  3. Step 3: Cross multiply
    5,709.96x = 8,550.97 × 5,155.92
  4. Step 4: Simplify right side
    5,709.96x = 44,088,104.35
  5. Step 5: Solve for x
    x = 44,088,104.35/5,709.96
  6. Step 6: Final answer
    x = 7,721.26

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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.