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Finding the Fourth Proportional to 8,144.70, 12,189.36 and 5,026.68

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Solution

The fourth proportional to 8,144.70, 12,189.36 and 5,026.68 is: 7,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.70 : 12,189.36 = 5,026.68 : x
  2. Step 2: Convert to fraction form
    8,144.70/12,189.36 = 5,026.68/x
  3. Step 3: Cross multiply
    8,144.70x = 12,189.36 × 5,026.68
  4. Step 4: Simplify right side
    8,144.70x = 61,272,012.12
  5. Step 5: Solve for x
    x = 61,272,012.12/8,144.70
  6. Step 6: Final answer
    x = 7,522.93

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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.