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Finding the Fourth Proportional to 16,917.20, 25,376.70 and 7,057.48

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Solution

The fourth proportional to 16,917.20, 25,376.70 and 7,057.48 is: 10,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917.20 : 25,376.70 = 7,057.48 : x
  2. Step 2: Convert to fraction form
    16,917.20/25,376.70 = 7,057.48/x
  3. Step 3: Cross multiply
    16,917.20x = 25,376.70 × 7,057.48
  4. Step 4: Simplify right side
    16,917.20x = 179,095,552.72
  5. Step 5: Solve for x
    x = 179,095,552.72/16,917.20
  6. Step 6: Final answer
    x = 10,586.60

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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.