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Finding the Fourth Proportional to 18,282.54, 25,229.97 and 9,899.04

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Solution

The fourth proportional to 18,282.54, 25,229.97 and 9,899.04 is: 13,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.54 : 25,229.97 = 9,899.04 : x
  2. Step 2: Convert to fraction form
    18,282.54/25,229.97 = 9,899.04/x
  3. Step 3: Cross multiply
    18,282.54x = 25,229.97 × 9,899.04
  4. Step 4: Simplify right side
    18,282.54x = 249,752,482.23
  5. Step 5: Solve for x
    x = 249,752,482.23/18,282.54
  6. Step 6: Final answer
    x = 13,660.71

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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.