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Finding the Fourth Proportional to 85,236.98, 127,869.84 and 26,058.78

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Solution

The fourth proportional to 85,236.98, 127,869.84 and 26,058.78 is: 39,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,236.98 : 127,869.84 = 26,058.78 : x
  2. Step 2: Convert to fraction form
    85,236.98/127,869.84 = 26,058.78/x
  3. Step 3: Cross multiply
    85,236.98x = 127,869.84 × 26,058.78
  4. Step 4: Simplify right side
    85,236.98x = 3,332,132,029.20
  5. Step 5: Solve for x
    x = 3,332,132,029.20/85,236.98
  6. Step 6: Final answer
    x = 39,092.57

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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.