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Finding the Fourth Proportional to 40,179.20, 60,211.20 and 29,566.40

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Solution

The fourth proportional to 40,179.20, 60,211.20 and 29,566.40 is: 44,307.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,179.20 : 60,211.20 = 29,566.40 : x
  2. Step 2: Convert to fraction form
    40,179.20/60,211.20 = 29,566.40/x
  3. Step 3: Cross multiply
    40,179.20x = 60,211.20 × 29,566.40
  4. Step 4: Simplify right side
    40,179.20x = 1,780,228,423.68
  5. Step 5: Solve for x
    x = 1,780,228,423.68/40,179.20
  6. Step 6: Final answer
    x = 44,307.21

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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.