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Finding the Fourth Proportional to 27,379.30, 41,062.65 and 7,659.22

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Solution

The fourth proportional to 27,379.30, 41,062.65 and 7,659.22 is: 11,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.30 : 41,062.65 = 7,659.22 : x
  2. Step 2: Convert to fraction form
    27,379.30/41,062.65 = 7,659.22/x
  3. Step 3: Cross multiply
    27,379.30x = 41,062.65 × 7,659.22
  4. Step 4: Simplify right side
    27,379.30x = 314,507,870.13
  5. Step 5: Solve for x
    x = 314,507,870.13/27,379.30
  6. Step 6: Final answer
    x = 11,487.07

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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.