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Finding the Fourth Proportional to 40,960.20, 61,407.90 and 22,492.20

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Solution

The fourth proportional to 40,960.20, 61,407.90 and 22,492.20 is: 33,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,960.20 : 61,407.90 = 22,492.20 : x
  2. Step 2: Convert to fraction form
    40,960.20/61,407.90 = 22,492.20/x
  3. Step 3: Cross multiply
    40,960.20x = 61,407.90 × 22,492.20
  4. Step 4: Simplify right side
    40,960.20x = 1,381,198,768.38
  5. Step 5: Solve for x
    x = 1,381,198,768.38/40,960.20
  6. Step 6: Final answer
    x = 33,720.51

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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.