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Finding the Fourth Proportional to 16,620.20, 22,936.07 and 9,547.28

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Solution

The fourth proportional to 16,620.20, 22,936.07 and 9,547.28 is: 13,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.20 : 22,936.07 = 9,547.28 : x
  2. Step 2: Convert to fraction form
    16,620.20/22,936.07 = 9,547.28/x
  3. Step 3: Cross multiply
    16,620.20x = 22,936.07 × 9,547.28
  4. Step 4: Simplify right side
    16,620.20x = 218,976,919.97
  5. Step 5: Solve for x
    x = 218,976,919.97/16,620.20
  6. Step 6: Final answer
    x = 13,175.35

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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.