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Finding the Fourth Proportional to 18,573.36, 27,859.94 and 6,574.40

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Solution

The fourth proportional to 18,573.36, 27,859.94 and 6,574.40 is: 9,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.36 : 27,859.94 = 6,574.40 : x
  2. Step 2: Convert to fraction form
    18,573.36/27,859.94 = 6,574.40/x
  3. Step 3: Cross multiply
    18,573.36x = 27,859.94 × 6,574.40
  4. Step 4: Simplify right side
    18,573.36x = 183,162,389.54
  5. Step 5: Solve for x
    x = 183,162,389.54/18,573.36
  6. Step 6: Final answer
    x = 9,861.56

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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.