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Finding the Fourth Proportional to 18,574.80, 27,905.95 and 15,133.92

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Solution

The fourth proportional to 18,574.80, 27,905.95 and 15,133.92 is: 22,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.80 : 27,905.95 = 15,133.92 : x
  2. Step 2: Convert to fraction form
    18,574.80/27,905.95 = 15,133.92/x
  3. Step 3: Cross multiply
    18,574.80x = 27,905.95 × 15,133.92
  4. Step 4: Simplify right side
    18,574.80x = 422,326,453.26
  5. Step 5: Solve for x
    x = 422,326,453.26/18,574.80
  6. Step 6: Final answer
    x = 22,736.52

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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.