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Finding the Fourth Proportional to 8,761.79, 13,148.15 and 3,567.67

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Solution

The fourth proportional to 8,761.79, 13,148.15 and 3,567.67 is: 5,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.79 : 13,148.15 = 3,567.67 : x
  2. Step 2: Convert to fraction form
    8,761.79/13,148.15 = 3,567.67/x
  3. Step 3: Cross multiply
    8,761.79x = 13,148.15 × 3,567.67
  4. Step 4: Simplify right side
    8,761.79x = 46,908,209.60
  5. Step 5: Solve for x
    x = 46,908,209.60/8,761.79
  6. Step 6: Final answer
    x = 5,353.72

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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.