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Finding the Fourth Proportional to 28,762.70, 43,132.50 and 16,940.44

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Solution

The fourth proportional to 28,762.70, 43,132.50 and 16,940.44 is: 25,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.70 : 43,132.50 = 16,940.44 : x
  2. Step 2: Convert to fraction form
    28,762.70/43,132.50 = 16,940.44/x
  3. Step 3: Cross multiply
    28,762.70x = 43,132.50 × 16,940.44
  4. Step 4: Simplify right side
    28,762.70x = 730,683,582.22
  5. Step 5: Solve for x
    x = 730,683,582.22/28,762.70
  6. Step 6: Final answer
    x = 25,403.86

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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.