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Finding the Fourth Proportional to 8,969.55, 13,455.96 and 3,701.69

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Solution

The fourth proportional to 8,969.55, 13,455.96 and 3,701.69 is: 5,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.55 : 13,455.96 = 3,701.69 : x
  2. Step 2: Convert to fraction form
    8,969.55/13,455.96 = 3,701.69/x
  3. Step 3: Cross multiply
    8,969.55x = 13,455.96 × 3,701.69
  4. Step 4: Simplify right side
    8,969.55x = 49,809,771.46
  5. Step 5: Solve for x
    x = 49,809,771.46/8,969.55
  6. Step 6: Final answer
    x = 5,553.21

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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.