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Finding the Fourth Proportional to 79,632.64, 109,893.44 and 43,826.24

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Solution

The fourth proportional to 79,632.64, 109,893.44 and 43,826.24 is: 60,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,632.64 : 109,893.44 = 43,826.24 : x
  2. Step 2: Convert to fraction form
    79,632.64/109,893.44 = 43,826.24/x
  3. Step 3: Cross multiply
    79,632.64x = 109,893.44 × 43,826.24
  4. Step 4: Simplify right side
    79,632.64x = 4,816,216,275.87
  5. Step 5: Solve for x
    x = 4,816,216,275.87/79,632.64
  6. Step 6: Final answer
    x = 60,480.43

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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.