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Finding the Fourth Proportional to 27,009.72, 40,500.86 and 15,768.86

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Solution

The fourth proportional to 27,009.72, 40,500.86 and 15,768.86 is: 23,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,009.72 : 40,500.86 = 15,768.86 : x
  2. Step 2: Convert to fraction form
    27,009.72/40,500.86 = 15,768.86/x
  3. Step 3: Cross multiply
    27,009.72x = 40,500.86 × 15,768.86
  4. Step 4: Simplify right side
    27,009.72x = 638,652,109.87
  5. Step 5: Solve for x
    x = 638,652,109.87/27,009.72
  6. Step 6: Final answer
    x = 23,645.27

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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.