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Finding the Fourth Proportional to 18,268.71, 27,404.01 and 5,790.06

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Solution

The fourth proportional to 18,268.71, 27,404.01 and 5,790.06 is: 8,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.71 : 27,404.01 = 5,790.06 : x
  2. Step 2: Convert to fraction form
    18,268.71/27,404.01 = 5,790.06/x
  3. Step 3: Cross multiply
    18,268.71x = 27,404.01 × 5,790.06
  4. Step 4: Simplify right side
    18,268.71x = 158,670,862.14
  5. Step 5: Solve for x
    x = 158,670,862.14/18,268.71
  6. Step 6: Final answer
    x = 8,685.39

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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.