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Finding the Fourth Proportional to 18,802.01, 25,939.91 and 11,248.56

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Solution

The fourth proportional to 18,802.01, 25,939.91 and 11,248.56 is: 15,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.01 : 25,939.91 = 11,248.56 : x
  2. Step 2: Convert to fraction form
    18,802.01/25,939.91 = 11,248.56/x
  3. Step 3: Cross multiply
    18,802.01x = 25,939.91 × 11,248.56
  4. Step 4: Simplify right side
    18,802.01x = 291,786,662.15
  5. Step 5: Solve for x
    x = 291,786,662.15/18,802.01
  6. Step 6: Final answer
    x = 15,518.91

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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.