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Finding the Fourth Proportional to 18,802.27, 25,940.26 and 11,248.81

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Solution

The fourth proportional to 18,802.27, 25,940.26 and 11,248.81 is: 15,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.27 : 25,940.26 = 11,248.81 : x
  2. Step 2: Convert to fraction form
    18,802.27/25,940.26 = 11,248.81/x
  3. Step 3: Cross multiply
    18,802.27x = 25,940.26 × 11,248.81
  4. Step 4: Simplify right side
    18,802.27x = 291,796,999.85
  5. Step 5: Solve for x
    x = 291,796,999.85/18,802.27
  6. Step 6: Final answer
    x = 15,519.25

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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.