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Finding the Fourth Proportional to 65,992.86, 91,069.38 and 35,778.24

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Solution

The fourth proportional to 65,992.86, 91,069.38 and 35,778.24 is: 49,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,992.86 : 91,069.38 = 35,778.24 : x
  2. Step 2: Convert to fraction form
    65,992.86/91,069.38 = 35,778.24/x
  3. Step 3: Cross multiply
    65,992.86x = 91,069.38 × 35,778.24
  4. Step 4: Simplify right side
    65,992.86x = 3,258,302,134.29
  5. Step 5: Solve for x
    x = 3,258,302,134.29/65,992.86
  6. Step 6: Final answer
    x = 49,373.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.