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Finding the Fourth Proportional to 27,227.80, 40,820.10 and 14,915.80

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Solution

The fourth proportional to 27,227.80, 40,820.10 and 14,915.80 is: 22,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,227.80 : 40,820.10 = 14,915.80 : x
  2. Step 2: Convert to fraction form
    27,227.80/40,820.10 = 14,915.80/x
  3. Step 3: Cross multiply
    27,227.80x = 40,820.10 × 14,915.80
  4. Step 4: Simplify right side
    27,227.80x = 608,864,447.58
  5. Step 5: Solve for x
    x = 608,864,447.58/27,227.80
  6. Step 6: Final answer
    x = 22,361.87

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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.