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Finding the Fourth Proportional to 18,696.36, 25,800.99 and 10,739.10

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Solution

The fourth proportional to 18,696.36, 25,800.99 and 10,739.10 is: 14,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.36 : 25,800.99 = 10,739.10 : x
  2. Step 2: Convert to fraction form
    18,696.36/25,800.99 = 10,739.10/x
  3. Step 3: Cross multiply
    18,696.36x = 25,800.99 × 10,739.10
  4. Step 4: Simplify right side
    18,696.36x = 277,079,411.71
  5. Step 5: Solve for x
    x = 277,079,411.71/18,696.36
  6. Step 6: Final answer
    x = 14,819.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.