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Finding the Fourth Proportional to 8,751.96, 13,137.32 and 4,859.64

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Solution

The fourth proportional to 8,751.96, 13,137.32 and 4,859.64 is: 7,294.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.96 : 13,137.32 = 4,859.64 : x
  2. Step 2: Convert to fraction form
    8,751.96/13,137.32 = 4,859.64/x
  3. Step 3: Cross multiply
    8,751.96x = 13,137.32 × 4,859.64
  4. Step 4: Simplify right side
    8,751.96x = 63,842,645.76
  5. Step 5: Solve for x
    x = 63,842,645.76/8,751.96
  6. Step 6: Final answer
    x = 7,294.67

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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.