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Finding the Fourth Proportional to 85,197.51, 127,819.26 and 26,031.56

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Solution

The fourth proportional to 85,197.51, 127,819.26 and 26,031.56 is: 39,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,197.51 : 127,819.26 = 26,031.56 : x
  2. Step 2: Convert to fraction form
    85,197.51/127,819.26 = 26,031.56/x
  3. Step 3: Cross multiply
    85,197.51x = 127,819.26 × 26,031.56
  4. Step 4: Simplify right side
    85,197.51x = 3,327,334,735.85
  5. Step 5: Solve for x
    x = 3,327,334,735.85/85,197.51
  6. Step 6: Final answer
    x = 39,054.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.