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Finding the Fourth Proportional to 56,940.80, 85,411.20 and 33,593.60

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Solution

The fourth proportional to 56,940.80, 85,411.20 and 33,593.60 is: 50,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,940.80 : 85,411.20 = 33,593.60 : x
  2. Step 2: Convert to fraction form
    56,940.80/85,411.20 = 33,593.60/x
  3. Step 3: Cross multiply
    56,940.80x = 85,411.20 × 33,593.60
  4. Step 4: Simplify right side
    56,940.80x = 2,869,269,688.32
  5. Step 5: Solve for x
    x = 2,869,269,688.32/56,940.80
  6. Step 6: Final answer
    x = 50,390.40

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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.