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Finding the Fourth Proportional to 18,403.97, 27,586.11 and 9,033.08

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Solution

The fourth proportional to 18,403.97, 27,586.11 and 9,033.08 is: 13,539.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.97 : 27,586.11 = 9,033.08 : x
  2. Step 2: Convert to fraction form
    18,403.97/27,586.11 = 9,033.08/x
  3. Step 3: Cross multiply
    18,403.97x = 27,586.11 × 9,033.08
  4. Step 4: Simplify right side
    18,403.97x = 249,187,538.52
  5. Step 5: Solve for x
    x = 249,187,538.52/18,403.97
  6. Step 6: Final answer
    x = 13,539.88

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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.