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Finding the Fourth Proportional to 53,230.30, 79,845.45 and 50,638.30

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Solution

The fourth proportional to 53,230.30, 79,845.45 and 50,638.30 is: 75,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,230.30 : 79,845.45 = 50,638.30 : x
  2. Step 2: Convert to fraction form
    53,230.30/79,845.45 = 50,638.30/x
  3. Step 3: Cross multiply
    53,230.30x = 79,845.45 × 50,638.30
  4. Step 4: Simplify right side
    53,230.30x = 4,043,237,850.74
  5. Step 5: Solve for x
    x = 4,043,237,850.74/53,230.30
  6. Step 6: Final answer
    x = 75,957.45

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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.