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Finding the Fourth Proportional to 28,817, 43,225.50 and 9,361

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Solution

The fourth proportional to 28,817, 43,225.50 and 9,361 is: 14,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817 : 43,225.50 = 9,361 : x
  2. Step 2: Convert to fraction form
    28,817/43,225.50 = 9,361/x
  3. Step 3: Cross multiply
    28,817x = 43,225.50 × 9,361
  4. Step 4: Simplify right side
    28,817x = 404,633,905.50
  5. Step 5: Solve for x
    x = 404,633,905.50/28,817
  6. Step 6: Final answer
    x = 14,041.50

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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.