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Finding the Fourth Proportional to 18,802.15, 25,949.73 and 10,842.82

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Solution

The fourth proportional to 18,802.15, 25,949.73 and 10,842.82 is: 14,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.15 : 25,949.73 = 10,842.82 : x
  2. Step 2: Convert to fraction form
    18,802.15/25,949.73 = 10,842.82/x
  3. Step 3: Cross multiply
    18,802.15x = 25,949.73 × 10,842.82
  4. Step 4: Simplify right side
    18,802.15x = 281,368,251.44
  5. Step 5: Solve for x
    x = 281,368,251.44/18,802.15
  6. Step 6: Final answer
    x = 14,964.68

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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.