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Finding the Fourth Proportional to 28,604.50, 42,913.24 and 10,136.50

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Solution

The fourth proportional to 28,604.50, 42,913.24 and 10,136.50 is: 15,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.50 : 42,913.24 = 10,136.50 : x
  2. Step 2: Convert to fraction form
    28,604.50/42,913.24 = 10,136.50/x
  3. Step 3: Cross multiply
    28,604.50x = 42,913.24 × 10,136.50
  4. Step 4: Simplify right side
    28,604.50x = 434,990,057.26
  5. Step 5: Solve for x
    x = 434,990,057.26/28,604.50
  6. Step 6: Final answer
    x = 15,207.05

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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.