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Finding the Fourth Proportional to 85,566.80, 128,311.80 and 32,958.80

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Solution

The fourth proportional to 85,566.80, 128,311.80 and 32,958.80 is: 49,423.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,566.80 : 128,311.80 = 32,958.80 : x
  2. Step 2: Convert to fraction form
    85,566.80/128,311.80 = 32,958.80/x
  3. Step 3: Cross multiply
    85,566.80x = 128,311.80 × 32,958.80
  4. Step 4: Simplify right side
    85,566.80x = 4,229,002,953.84
  5. Step 5: Solve for x
    x = 4,229,002,953.84/85,566.80
  6. Step 6: Final answer
    x = 49,423.41

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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.