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Finding the Fourth Proportional to 56,960.80, 85,441.20 and 33,613.60

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Solution

The fourth proportional to 56,960.80, 85,441.20 and 33,613.60 is: 50,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,960.80 : 85,441.20 = 33,613.60 : x
  2. Step 2: Convert to fraction form
    56,960.80/85,441.20 = 33,613.60/x
  3. Step 3: Cross multiply
    56,960.80x = 85,441.20 × 33,613.60
  4. Step 4: Simplify right side
    56,960.80x = 2,871,986,320.32
  5. Step 5: Solve for x
    x = 2,871,986,320.32/56,960.80
  6. Step 6: Final answer
    x = 50,420.40

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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.