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Finding the Fourth Proportional to 18,563.52, 25,617.71 and 11,013.59

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Solution

The fourth proportional to 18,563.52, 25,617.71 and 11,013.59 is: 15,198.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.52 : 25,617.71 = 11,013.59 : x
  2. Step 2: Convert to fraction form
    18,563.52/25,617.71 = 11,013.59/x
  3. Step 3: Cross multiply
    18,563.52x = 25,617.71 × 11,013.59
  4. Step 4: Simplify right side
    18,563.52x = 282,142,854.12
  5. Step 5: Solve for x
    x = 282,142,854.12/18,563.52
  6. Step 6: Final answer
    x = 15,198.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.