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Finding the Fourth Proportional to 18,574.06, 27,828.74 and 15,473.99

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Solution

The fourth proportional to 18,574.06, 27,828.74 and 15,473.99 is: 23,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.06 : 27,828.74 = 15,473.99 : x
  2. Step 2: Convert to fraction form
    18,574.06/27,828.74 = 15,473.99/x
  3. Step 3: Cross multiply
    18,574.06x = 27,828.74 × 15,473.99
  4. Step 4: Simplify right side
    18,574.06x = 430,621,644.47
  5. Step 5: Solve for x
    x = 430,621,644.47/18,574.06
  6. Step 6: Final answer
    x = 23,184.03

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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.