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Finding the Fourth Proportional to 27,015.52, 37,310.16 and 20,573.20

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Solution

The fourth proportional to 27,015.52, 37,310.16 and 20,573.20 is: 28,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.52 : 37,310.16 = 20,573.20 : x
  2. Step 2: Convert to fraction form
    27,015.52/37,310.16 = 20,573.20/x
  3. Step 3: Cross multiply
    27,015.52x = 37,310.16 × 20,573.20
  4. Step 4: Simplify right side
    27,015.52x = 767,589,383.71
  5. Step 5: Solve for x
    x = 767,589,383.71/27,015.52
  6. Step 6: Final answer
    x = 28,412.90

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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.