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Finding the Fourth Proportional to 16,513.51, 22,788.51 and 8,959.84

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Solution

The fourth proportional to 16,513.51, 22,788.51 and 8,959.84 is: 12,364.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,513.51 : 22,788.51 = 8,959.84 : x
  2. Step 2: Convert to fraction form
    16,513.51/22,788.51 = 8,959.84/x
  3. Step 3: Cross multiply
    16,513.51x = 22,788.51 × 8,959.84
  4. Step 4: Simplify right side
    16,513.51x = 204,181,403.44
  5. Step 5: Solve for x
    x = 204,181,403.44/16,513.51
  6. Step 6: Final answer
    x = 12,364.51

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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.