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Finding the Fourth Proportional to 27,415.96, 37,834.65 and 15,479.30

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Solution

The fourth proportional to 27,415.96, 37,834.65 and 15,479.30 is: 21,361.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,415.96 : 37,834.65 = 15,479.30 : x
  2. Step 2: Convert to fraction form
    27,415.96/37,834.65 = 15,479.30/x
  3. Step 3: Cross multiply
    27,415.96x = 37,834.65 × 15,479.30
  4. Step 4: Simplify right side
    27,415.96x = 585,653,708.57
  5. Step 5: Solve for x
    x = 585,653,708.57/27,415.96
  6. Step 6: Final answer
    x = 21,361.78

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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.