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Finding the Fourth Proportional to 18,475.99, 27,707.69 and 5,324.83

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Solution

The fourth proportional to 18,475.99, 27,707.69 and 5,324.83 is: 7,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.99 : 27,707.69 = 5,324.83 : x
  2. Step 2: Convert to fraction form
    18,475.99/27,707.69 = 5,324.83/x
  3. Step 3: Cross multiply
    18,475.99x = 27,707.69 × 5,324.83
  4. Step 4: Simplify right side
    18,475.99x = 147,538,712.32
  5. Step 5: Solve for x
    x = 147,538,712.32/18,475.99
  6. Step 6: Final answer
    x = 7,985.43

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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.