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Finding the Fourth Proportional to 8,500.50, 11,730.69 and 4,774.50

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Solution

The fourth proportional to 8,500.50, 11,730.69 and 4,774.50 is: 6,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.50 : 11,730.69 = 4,774.50 : x
  2. Step 2: Convert to fraction form
    8,500.50/11,730.69 = 4,774.50/x
  3. Step 3: Cross multiply
    8,500.50x = 11,730.69 × 4,774.50
  4. Step 4: Simplify right side
    8,500.50x = 56,008,179.41
  5. Step 5: Solve for x
    x = 56,008,179.41/8,500.50
  6. Step 6: Final answer
    x = 6,588.81

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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.