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Finding the Fourth Proportional to 18,574.14, 27,828.84 and 15,474.07

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Solution

The fourth proportional to 18,574.14, 27,828.84 and 15,474.07 is: 23,184.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.14 : 27,828.84 = 15,474.07 : x
  2. Step 2: Convert to fraction form
    18,574.14/27,828.84 = 15,474.07/x
  3. Step 3: Cross multiply
    18,574.14x = 27,828.84 × 15,474.07
  4. Step 4: Simplify right side
    18,574.14x = 430,625,279.03
  5. Step 5: Solve for x
    x = 430,625,279.03/18,574.14
  6. Step 6: Final answer
    x = 23,184.13

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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.