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Finding the Fourth Proportional to 67,172.86, 100,695.84 and 22,768.12

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Solution

The fourth proportional to 67,172.86, 100,695.84 and 22,768.12 is: 34,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,172.86 : 100,695.84 = 22,768.12 : x
  2. Step 2: Convert to fraction form
    67,172.86/100,695.84 = 22,768.12/x
  3. Step 3: Cross multiply
    67,172.86x = 100,695.84 × 22,768.12
  4. Step 4: Simplify right side
    67,172.86x = 2,292,654,968.62
  5. Step 5: Solve for x
    x = 2,292,654,968.62/67,172.86
  6. Step 6: Final answer
    x = 34,130.67

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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.