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Finding the Fourth Proportional to 16,991.72, 23,447.44 and 9,437.44

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Solution

The fourth proportional to 16,991.72, 23,447.44 and 9,437.44 is: 13,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.72 : 23,447.44 = 9,437.44 : x
  2. Step 2: Convert to fraction form
    16,991.72/23,447.44 = 9,437.44/x
  3. Step 3: Cross multiply
    16,991.72x = 23,447.44 × 9,437.44
  4. Step 4: Simplify right side
    16,991.72x = 221,283,808.15
  5. Step 5: Solve for x
    x = 221,283,808.15/16,991.72
  6. Step 6: Final answer
    x = 13,023.04

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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.