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Finding the Fourth Proportional to 11,651.33, 16,078.86 and 6,346.13

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Solution

The fourth proportional to 11,651.33, 16,078.86 and 6,346.13 is: 8,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.33 : 16,078.86 = 6,346.13 : x
  2. Step 2: Convert to fraction form
    11,651.33/16,078.86 = 6,346.13/x
  3. Step 3: Cross multiply
    11,651.33x = 16,078.86 × 6,346.13
  4. Step 4: Simplify right side
    11,651.33x = 102,038,535.81
  5. Step 5: Solve for x
    x = 102,038,535.81/11,651.33
  6. Step 6: Final answer
    x = 8,757.67

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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.