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Finding the Fourth Proportional to 40,336.80, 60,505.20 and 29,968.80

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Solution

The fourth proportional to 40,336.80, 60,505.20 and 29,968.80 is: 44,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,336.80 : 60,505.20 = 29,968.80 : x
  2. Step 2: Convert to fraction form
    40,336.80/60,505.20 = 29,968.80/x
  3. Step 3: Cross multiply
    40,336.80x = 60,505.20 × 29,968.80
  4. Step 4: Simplify right side
    40,336.80x = 1,813,268,237.76
  5. Step 5: Solve for x
    x = 1,813,268,237.76/40,336.80
  6. Step 6: Final answer
    x = 44,953.20

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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.