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Finding the Fourth Proportional to 27,245.80, 37,596.90 and 15,308.20

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Solution

The fourth proportional to 27,245.80, 37,596.90 and 15,308.20 is: 21,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,245.80 : 37,596.90 = 15,308.20 : x
  2. Step 2: Convert to fraction form
    27,245.80/37,596.90 = 15,308.20/x
  3. Step 3: Cross multiply
    27,245.80x = 37,596.90 × 15,308.20
  4. Step 4: Simplify right side
    27,245.80x = 575,540,864.58
  5. Step 5: Solve for x
    x = 575,540,864.58/27,245.80
  6. Step 6: Final answer
    x = 21,124.02

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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.