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Finding the Fourth Proportional to 18,262.92, 25,205.92 and 10,605

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Solution

The fourth proportional to 18,262.92, 25,205.92 and 10,605 is: 14,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.92 : 25,205.92 = 10,605 : x
  2. Step 2: Convert to fraction form
    18,262.92/25,205.92 = 10,605/x
  3. Step 3: Cross multiply
    18,262.92x = 25,205.92 × 10,605
  4. Step 4: Simplify right side
    18,262.92x = 267,308,755.09
  5. Step 5: Solve for x
    x = 267,308,755.09/18,262.92
  6. Step 6: Final answer
    x = 14,636.69

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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.