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Finding the Fourth Proportional to 8,722.50, 12,037.23 and 4,996.50

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Solution

The fourth proportional to 8,722.50, 12,037.23 and 4,996.50 is: 6,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.50 : 12,037.23 = 4,996.50 : x
  2. Step 2: Convert to fraction form
    8,722.50/12,037.23 = 4,996.50/x
  3. Step 3: Cross multiply
    8,722.50x = 12,037.23 × 4,996.50
  4. Step 4: Simplify right side
    8,722.50x = 60,144,019.70
  5. Step 5: Solve for x
    x = 60,144,019.70/8,722.50
  6. Step 6: Final answer
    x = 6,895.27

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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.