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Finding the Fourth Proportional to 18,015.10, 27,024.18 and 13,804.48

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Solution

The fourth proportional to 18,015.10, 27,024.18 and 13,804.48 is: 20,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.10 : 27,024.18 = 13,804.48 : x
  2. Step 2: Convert to fraction form
    18,015.10/27,024.18 = 13,804.48/x
  3. Step 3: Cross multiply
    18,015.10x = 27,024.18 × 13,804.48
  4. Step 4: Simplify right side
    18,015.10x = 373,054,752.33
  5. Step 5: Solve for x
    x = 373,054,752.33/18,015.10
  6. Step 6: Final answer
    x = 20,707.89

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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.