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Finding the Fourth Proportional to 18,605.87, 27,913.36 and 9,250.29

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Solution

The fourth proportional to 18,605.87, 27,913.36 and 9,250.29 is: 13,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.87 : 27,913.36 = 9,250.29 : x
  2. Step 2: Convert to fraction form
    18,605.87/27,913.36 = 9,250.29/x
  3. Step 3: Cross multiply
    18,605.87x = 27,913.36 × 9,250.29
  4. Step 4: Simplify right side
    18,605.87x = 258,206,674.87
  5. Step 5: Solve for x
    x = 258,206,674.87/18,605.87
  6. Step 6: Final answer
    x = 13,877.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.