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Finding the Fourth Proportional to 57,351.60, 79,254.72 and 43,179.84

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Solution

The fourth proportional to 57,351.60, 79,254.72 and 43,179.84 is: 59,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,351.60 : 79,254.72 = 43,179.84 : x
  2. Step 2: Convert to fraction form
    57,351.60/79,254.72 = 43,179.84/x
  3. Step 3: Cross multiply
    57,351.60x = 79,254.72 × 43,179.84
  4. Step 4: Simplify right side
    57,351.60x = 3,422,206,128.84
  5. Step 5: Solve for x
    x = 3,422,206,128.84/57,351.60
  6. Step 6: Final answer
    x = 59,670.63

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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.