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Finding the Fourth Proportional to 28,453.11, 42,679.62 and 9,733.32

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Solution

The fourth proportional to 28,453.11, 42,679.62 and 9,733.32 is: 14,599.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.11 : 42,679.62 = 9,733.32 : x
  2. Step 2: Convert to fraction form
    28,453.11/42,679.62 = 9,733.32/x
  3. Step 3: Cross multiply
    28,453.11x = 42,679.62 × 9,733.32
  4. Step 4: Simplify right side
    28,453.11x = 415,414,398.94
  5. Step 5: Solve for x
    x = 415,414,398.94/28,453.11
  6. Step 6: Final answer
    x = 14,599.96

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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.