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Finding the Fourth Proportional to 16,489.14, 22,751.73 and 9,779.82

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Solution

The fourth proportional to 16,489.14, 22,751.73 and 9,779.82 is: 13,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.14 : 22,751.73 = 9,779.82 : x
  2. Step 2: Convert to fraction form
    16,489.14/22,751.73 = 9,779.82/x
  3. Step 3: Cross multiply
    16,489.14x = 22,751.73 × 9,779.82
  4. Step 4: Simplify right side
    16,489.14x = 222,507,824.09
  5. Step 5: Solve for x
    x = 222,507,824.09/16,489.14
  6. Step 6: Final answer
    x = 13,494.20

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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.