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Finding the Fourth Proportional to 67,768.40, 101,579.70 and 25,632.20

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Solution

The fourth proportional to 67,768.40, 101,579.70 and 25,632.20 is: 38,420.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,768.40 : 101,579.70 = 25,632.20 : x
  2. Step 2: Convert to fraction form
    67,768.40/101,579.70 = 25,632.20/x
  3. Step 3: Cross multiply
    67,768.40x = 101,579.70 × 25,632.20
  4. Step 4: Simplify right side
    67,768.40x = 2,603,711,186.34
  5. Step 5: Solve for x
    x = 2,603,711,186.34/67,768.40
  6. Step 6: Final answer
    x = 38,420.73

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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.