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Finding the Fourth Proportional to 27,149.84, 37,467.84 and 15,213.28

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Solution

The fourth proportional to 27,149.84, 37,467.84 and 15,213.28 is: 20,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,149.84 : 37,467.84 = 15,213.28 : x
  2. Step 2: Convert to fraction form
    27,149.84/37,467.84 = 15,213.28/x
  3. Step 3: Cross multiply
    27,149.84x = 37,467.84 × 15,213.28
  4. Step 4: Simplify right side
    27,149.84x = 570,008,740.92
  5. Step 5: Solve for x
    x = 570,008,740.92/27,149.84
  6. Step 6: Final answer
    x = 20,994.92

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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.