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Finding the Fourth Proportional to 67,644.40, 101,272.20 and 41,400.40

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Solution

The fourth proportional to 67,644.40, 101,272.20 and 41,400.40 is: 61,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,644.40 : 101,272.20 = 41,400.40 : x
  2. Step 2: Convert to fraction form
    67,644.40/101,272.20 = 41,400.40/x
  3. Step 3: Cross multiply
    67,644.40x = 101,272.20 × 41,400.40
  4. Step 4: Simplify right side
    67,644.40x = 4,192,709,588.88
  5. Step 5: Solve for x
    x = 4,192,709,588.88/67,644.40
  6. Step 6: Final answer
    x = 61,981.62

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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.