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Finding the Fourth Proportional to 28,992.88, 43,490.46 and 9,004.46

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Solution

The fourth proportional to 28,992.88, 43,490.46 and 9,004.46 is: 13,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.88 : 43,490.46 = 9,004.46 : x
  2. Step 2: Convert to fraction form
    28,992.88/43,490.46 = 9,004.46/x
  3. Step 3: Cross multiply
    28,992.88x = 43,490.46 × 9,004.46
  4. Step 4: Simplify right side
    28,992.88x = 391,608,107.45
  5. Step 5: Solve for x
    x = 391,608,107.45/28,992.88
  6. Step 6: Final answer
    x = 13,507.04

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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.