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Finding the Fourth Proportional to 22,479.25, 33,720.50 and 8,628.25

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Solution

The fourth proportional to 22,479.25, 33,720.50 and 8,628.25 is: 12,943.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,479.25 : 33,720.50 = 8,628.25 : x
  2. Step 2: Convert to fraction form
    22,479.25/33,720.50 = 8,628.25/x
  3. Step 3: Cross multiply
    22,479.25x = 33,720.50 × 8,628.25
  4. Step 4: Simplify right side
    22,479.25x = 290,948,904.13
  5. Step 5: Solve for x
    x = 290,948,904.13/22,479.25
  6. Step 6: Final answer
    x = 12,943.00

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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.