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Finding the Fourth Proportional to 18,843.84, 25,982.64 and 17,699.58

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Solution

The fourth proportional to 18,843.84, 25,982.64 and 17,699.58 is: 24,404.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.84 : 25,982.64 = 17,699.58 : x
  2. Step 2: Convert to fraction form
    18,843.84/25,982.64 = 17,699.58/x
  3. Step 3: Cross multiply
    18,843.84x = 25,982.64 × 17,699.58
  4. Step 4: Simplify right side
    18,843.84x = 459,881,815.29
  5. Step 5: Solve for x
    x = 459,881,815.29/18,843.84
  6. Step 6: Final answer
    x = 24,404.89

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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.