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Finding the Fourth Proportional to 8,365.50, 11,544.39 and 4,639.50

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Solution

The fourth proportional to 8,365.50, 11,544.39 and 4,639.50 is: 6,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.50 : 11,544.39 = 4,639.50 : x
  2. Step 2: Convert to fraction form
    8,365.50/11,544.39 = 4,639.50/x
  3. Step 3: Cross multiply
    8,365.50x = 11,544.39 × 4,639.50
  4. Step 4: Simplify right side
    8,365.50x = 53,560,197.41
  5. Step 5: Solve for x
    x = 53,560,197.41/8,365.50
  6. Step 6: Final answer
    x = 6,402.51

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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.