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Finding the Fourth Proportional to 16,881.60, 25,311.60 and 7,024.80

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Solution

The fourth proportional to 16,881.60, 25,311.60 and 7,024.80 is: 10,532.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.60 : 25,311.60 = 7,024.80 : x
  2. Step 2: Convert to fraction form
    16,881.60/25,311.60 = 7,024.80/x
  3. Step 3: Cross multiply
    16,881.60x = 25,311.60 × 7,024.80
  4. Step 4: Simplify right side
    16,881.60x = 177,808,927.68
  5. Step 5: Solve for x
    x = 177,808,927.68/16,881.60
  6. Step 6: Final answer
    x = 10,532.71

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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.