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Finding the Fourth Proportional to 7,458.93, 11,188.39 and 3,551.49

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Solution

The fourth proportional to 7,458.93, 11,188.39 and 3,551.49 is: 5,327.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.93 : 11,188.39 = 3,551.49 : x
  2. Step 2: Convert to fraction form
    7,458.93/11,188.39 = 3,551.49/x
  3. Step 3: Cross multiply
    7,458.93x = 11,188.39 × 3,551.49
  4. Step 4: Simplify right side
    7,458.93x = 39,735,408.81
  5. Step 5: Solve for x
    x = 39,735,408.81/7,458.93
  6. Step 6: Final answer
    x = 5,327.23

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Double scale
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Similar ratio
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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.