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Finding the Fourth Proportional to 71,540.79, 107,290.58 and 28,846.23

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Solution

The fourth proportional to 71,540.79, 107,290.58 and 28,846.23 is: 43,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,540.79 : 107,290.58 = 28,846.23 : x
  2. Step 2: Convert to fraction form
    71,540.79/107,290.58 = 28,846.23/x
  3. Step 3: Cross multiply
    71,540.79x = 107,290.58 × 28,846.23
  4. Step 4: Simplify right side
    71,540.79x = 3,094,928,200.94
  5. Step 5: Solve for x
    x = 3,094,928,200.94/71,540.79
  6. Step 6: Final answer
    x = 43,261.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.