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Finding the Fourth Proportional to 28,992.44, 40,017.45 and 17,059.63

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Solution

The fourth proportional to 28,992.44, 40,017.45 and 17,059.63 is: 23,546.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.44 : 40,017.45 = 17,059.63 : x
  2. Step 2: Convert to fraction form
    28,992.44/40,017.45 = 17,059.63/x
  3. Step 3: Cross multiply
    28,992.44x = 40,017.45 × 17,059.63
  4. Step 4: Simplify right side
    28,992.44x = 682,682,690.46
  5. Step 5: Solve for x
    x = 682,682,690.46/28,992.44
  6. Step 6: Final answer
    x = 23,546.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.