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Finding the Fourth Proportional to 79,626.54, 109,847.67 and 47,740.14

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Solution

The fourth proportional to 79,626.54, 109,847.67 and 47,740.14 is: 65,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,626.54 : 109,847.67 = 47,740.14 : x
  2. Step 2: Convert to fraction form
    79,626.54/109,847.67 = 47,740.14/x
  3. Step 3: Cross multiply
    79,626.54x = 109,847.67 × 47,740.14
  4. Step 4: Simplify right side
    79,626.54x = 5,244,143,144.47
  5. Step 5: Solve for x
    x = 5,244,143,144.47/79,626.54
  6. Step 6: Final answer
    x = 65,859.24

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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.