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Finding the Fourth Proportional to 79,292.64, 109,425.34 and 43,480.51

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Solution

The fourth proportional to 79,292.64, 109,425.34 and 43,480.51 is: 60,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,292.64 : 109,425.34 = 43,480.51 : x
  2. Step 2: Convert to fraction form
    79,292.64/109,425.34 = 43,480.51/x
  3. Step 3: Cross multiply
    79,292.64x = 109,425.34 × 43,480.51
  4. Step 4: Simplify right side
    79,292.64x = 4,757,869,481.42
  5. Step 5: Solve for x
    x = 4,757,869,481.42/79,292.64
  6. Step 6: Final answer
    x = 60,003.93

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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.