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Finding the Fourth Proportional to 61,191.99, 91,771.27 and 16,808.18

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Solution

The fourth proportional to 61,191.99, 91,771.27 and 16,808.18 is: 25,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,191.99 : 91,771.27 = 16,808.18 : x
  2. Step 2: Convert to fraction form
    61,191.99/91,771.27 = 16,808.18/x
  3. Step 3: Cross multiply
    61,191.99x = 91,771.27 × 16,808.18
  4. Step 4: Simplify right side
    61,191.99x = 1,542,507,524.11
  5. Step 5: Solve for x
    x = 1,542,507,524.11/61,191.99
  6. Step 6: Final answer
    x = 25,207.67

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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.