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Finding the Fourth Proportional to 22,312.75, 33,469.24 and 7,521.80

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Solution

The fourth proportional to 22,312.75, 33,469.24 and 7,521.80 is: 11,282.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.75 : 33,469.24 = 7,521.80 : x
  2. Step 2: Convert to fraction form
    22,312.75/33,469.24 = 7,521.80/x
  3. Step 3: Cross multiply
    22,312.75x = 33,469.24 × 7,521.80
  4. Step 4: Simplify right side
    22,312.75x = 251,748,929.43
  5. Step 5: Solve for x
    x = 251,748,929.43/22,312.75
  6. Step 6: Final answer
    x = 11,282.74

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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.