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Finding the Fourth Proportional to 5,550.19, 7,672.93 and 5,317.83

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Solution

The fourth proportional to 5,550.19, 7,672.93 and 5,317.83 is: 7,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.19 : 7,672.93 = 5,317.83 : x
  2. Step 2: Convert to fraction form
    5,550.19/7,672.93 = 5,317.83/x
  3. Step 3: Cross multiply
    5,550.19x = 7,672.93 × 5,317.83
  4. Step 4: Simplify right side
    5,550.19x = 40,803,324.05
  5. Step 5: Solve for x
    x = 40,803,324.05/5,550.19
  6. Step 6: Final answer
    x = 7,351.70

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Half scale
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Double scale
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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.