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Finding the Fourth Proportional to 28,331.73, 42,494.73 and 8,610.48

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Solution

The fourth proportional to 28,331.73, 42,494.73 and 8,610.48 is: 12,914.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.73 : 42,494.73 = 8,610.48 : x
  2. Step 2: Convert to fraction form
    28,331.73/42,494.73 = 8,610.48/x
  3. Step 3: Cross multiply
    28,331.73x = 42,494.73 × 8,610.48
  4. Step 4: Simplify right side
    28,331.73x = 365,900,022.77
  5. Step 5: Solve for x
    x = 365,900,022.77/28,331.73
  6. Step 6: Final answer
    x = 12,914.85

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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.