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Finding the Fourth Proportional to 32,203.80, 48,348.90 and 20,539.80

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Solution

The fourth proportional to 32,203.80, 48,348.90 and 20,539.80 is: 30,837.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,203.80 : 48,348.90 = 20,539.80 : x
  2. Step 2: Convert to fraction form
    32,203.80/48,348.90 = 20,539.80/x
  3. Step 3: Cross multiply
    32,203.80x = 48,348.90 × 20,539.80
  4. Step 4: Simplify right side
    32,203.80x = 993,076,736.22
  5. Step 5: Solve for x
    x = 993,076,736.22/32,203.80
  6. Step 6: Final answer
    x = 30,837.25

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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.