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Finding the Fourth Proportional to 16,861.50, 25,274.97 and 7,006.50

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Solution

The fourth proportional to 16,861.50, 25,274.97 and 7,006.50 is: 10,502.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.50 : 25,274.97 = 7,006.50 : x
  2. Step 2: Convert to fraction form
    16,861.50/25,274.97 = 7,006.50/x
  3. Step 3: Cross multiply
    16,861.50x = 25,274.97 × 7,006.50
  4. Step 4: Simplify right side
    16,861.50x = 177,089,077.31
  5. Step 5: Solve for x
    x = 177,089,077.31/16,861.50
  6. Step 6: Final answer
    x = 10,502.57

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1.5x scale

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.