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Finding the Fourth Proportional to 85,597.98, 128,371.85 and 32,251.45

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Solution

The fourth proportional to 85,597.98, 128,371.85 and 32,251.45 is: 48,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.98 : 128,371.85 = 32,251.45 : x
  2. Step 2: Convert to fraction form
    85,597.98/128,371.85 = 32,251.45/x
  3. Step 3: Cross multiply
    85,597.98x = 128,371.85 × 32,251.45
  4. Step 4: Simplify right side
    85,597.98x = 4,140,178,301.68
  5. Step 5: Solve for x
    x = 4,140,178,301.68/85,597.98
  6. Step 6: Final answer
    x = 48,367.71

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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.