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Finding the Fourth Proportional to 56,940.79, 85,463.27 and 28,880.22

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Solution

The fourth proportional to 56,940.79, 85,463.27 and 28,880.22 is: 43,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,940.79 : 85,463.27 = 28,880.22 : x
  2. Step 2: Convert to fraction form
    56,940.79/85,463.27 = 28,880.22/x
  3. Step 3: Cross multiply
    56,940.79x = 85,463.27 × 28,880.22
  4. Step 4: Simplify right side
    56,940.79x = 2,468,198,039.52
  5. Step 5: Solve for x
    x = 2,468,198,039.52/56,940.79
  6. Step 6: Final answer
    x = 43,346.75

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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.