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Finding the Fourth Proportional to 16,628.80, 22,949.04 and 9,557.68

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Solution

The fourth proportional to 16,628.80, 22,949.04 and 9,557.68 is: 13,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,628.80 : 22,949.04 = 9,557.68 : x
  2. Step 2: Convert to fraction form
    16,628.80/22,949.04 = 9,557.68/x
  3. Step 3: Cross multiply
    16,628.80x = 22,949.04 × 9,557.68
  4. Step 4: Simplify right side
    16,628.80x = 219,339,580.63
  5. Step 5: Solve for x
    x = 219,339,580.63/16,628.80
  6. Step 6: Final answer
    x = 13,190.34

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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.