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Finding the Fourth Proportional to 18,371.94, 27,533.16 and 10,039.44

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Solution

The fourth proportional to 18,371.94, 27,533.16 and 10,039.44 is: 15,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.94 : 27,533.16 = 10,039.44 : x
  2. Step 2: Convert to fraction form
    18,371.94/27,533.16 = 10,039.44/x
  3. Step 3: Cross multiply
    18,371.94x = 27,533.16 × 10,039.44
  4. Step 4: Simplify right side
    18,371.94x = 276,417,507.83
  5. Step 5: Solve for x
    x = 276,417,507.83/18,371.94
  6. Step 6: Final answer
    x = 15,045.64

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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.