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Finding the Fourth Proportional to 73,812.75, 110,719.13 and 18,408.75

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Solution

The fourth proportional to 73,812.75, 110,719.13 and 18,408.75 is: 27,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,812.75 : 110,719.13 = 18,408.75 : x
  2. Step 2: Convert to fraction form
    73,812.75/110,719.13 = 18,408.75/x
  3. Step 3: Cross multiply
    73,812.75x = 110,719.13 × 18,408.75
  4. Step 4: Simplify right side
    73,812.75x = 2,038,200,692.34
  5. Step 5: Solve for x
    x = 2,038,200,692.34/73,812.75
  6. Step 6: Final answer
    x = 27,613.13

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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.