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Finding the Fourth Proportional to 86,453.67, 129,649.30 and 36,537.63

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Solution

The fourth proportional to 86,453.67, 129,649.30 and 36,537.63 is: 54,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,453.67 : 129,649.30 = 36,537.63 : x
  2. Step 2: Convert to fraction form
    86,453.67/129,649.30 = 36,537.63/x
  3. Step 3: Cross multiply
    86,453.67x = 129,649.30 × 36,537.63
  4. Step 4: Simplify right side
    86,453.67x = 4,737,078,153.16
  5. Step 5: Solve for x
    x = 4,737,078,153.16/86,453.67
  6. Step 6: Final answer
    x = 54,793.26

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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.