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Finding the Third Proportional to 15,231.38 and 35,257.88

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Solution

The third proportional to 15,231.38 and 35,257.88 is: 81,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.38 : 35,257.88 = 35,257.88 : x
  2. Step 2: Convert to fraction form
    15,231.38/35,257.88 = 35,257.88/x
  3. Step 3: Cross multiply
    15,231.38x = 35,257.88 × 35,257.88
  4. Step 4: Simplify right side
    15,231.38x = 1,243,117,749.52
  5. Step 5: Solve for x
    x = 1,243,117,749.52/15,231.38
  6. Step 6: Final answer
    x = 81,615.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.