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Finding the Fourth Proportional to 18,425.84, 25,224.22 and 18,294.08

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Solution

The fourth proportional to 18,425.84, 25,224.22 and 18,294.08 is: 25,043.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.84 : 25,224.22 = 18,294.08 : x
  2. Step 2: Convert to fraction form
    18,425.84/25,224.22 = 18,294.08/x
  3. Step 3: Cross multiply
    18,425.84x = 25,224.22 × 18,294.08
  4. Step 4: Simplify right side
    18,425.84x = 461,453,898.62
  5. Step 5: Solve for x
    x = 461,453,898.62/18,425.84
  6. Step 6: Final answer
    x = 25,043.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.