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Finding the Fourth Proportional to 18,573.92, 27,854.92 and 6,090.56

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Solution

The fourth proportional to 18,573.92, 27,854.92 and 6,090.56 is: 9,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.92 : 27,854.92 = 6,090.56 : x
  2. Step 2: Convert to fraction form
    18,573.92/27,854.92 = 6,090.56/x
  3. Step 3: Cross multiply
    18,573.92x = 27,854.92 × 6,090.56
  4. Step 4: Simplify right side
    18,573.92x = 169,652,061.56
  5. Step 5: Solve for x
    x = 169,652,061.56/18,573.92
  6. Step 6: Final answer
    x = 9,133.89

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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.