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Finding the Fourth Proportional to 22,479.63, 33,721.06 and 8,628.63

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Solution

The fourth proportional to 22,479.63, 33,721.06 and 8,628.63 is: 12,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,479.63 : 33,721.06 = 8,628.63 : x
  2. Step 2: Convert to fraction form
    22,479.63/33,721.06 = 8,628.63/x
  3. Step 3: Cross multiply
    22,479.63x = 33,721.06 × 8,628.63
  4. Step 4: Simplify right side
    22,479.63x = 290,966,549.95
  5. Step 5: Solve for x
    x = 290,966,549.95/22,479.63
  6. Step 6: Final answer
    x = 12,943.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.