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Finding the Fourth Proportional to 18,802.87, 25,936.23 and 12,097.24

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Solution

The fourth proportional to 18,802.87, 25,936.23 and 12,097.24 is: 16,686.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.87 : 25,936.23 = 12,097.24 : x
  2. Step 2: Convert to fraction form
    18,802.87/25,936.23 = 12,097.24/x
  3. Step 3: Cross multiply
    18,802.87x = 25,936.23 × 12,097.24
  4. Step 4: Simplify right side
    18,802.87x = 313,756,799.01
  5. Step 5: Solve for x
    x = 313,756,799.01/18,802.87
  6. Step 6: Final answer
    x = 16,686.64

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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.