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Finding the Fourth Proportional to 15,808.50, 23,694.50 and 7,490.60

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Solution

The fourth proportional to 15,808.50, 23,694.50 and 7,490.60 is: 11,227.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.50 : 23,694.50 = 7,490.60 : x
  2. Step 2: Convert to fraction form
    15,808.50/23,694.50 = 7,490.60/x
  3. Step 3: Cross multiply
    15,808.50x = 23,694.50 × 7,490.60
  4. Step 4: Simplify right side
    15,808.50x = 177,486,021.70
  5. Step 5: Solve for x
    x = 177,486,021.70/15,808.50
  6. Step 6: Final answer
    x = 11,227.25

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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.