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Finding the Fourth Proportional to 40,793.52, 61,178.52 and 11,212.32

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Solution

The fourth proportional to 40,793.52, 61,178.52 and 11,212.32 is: 16,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,793.52 : 61,178.52 = 11,212.32 : x
  2. Step 2: Convert to fraction form
    40,793.52/61,178.52 = 11,212.32/x
  3. Step 3: Cross multiply
    40,793.52x = 61,178.52 × 11,212.32
  4. Step 4: Simplify right side
    40,793.52x = 685,953,143.37
  5. Step 5: Solve for x
    x = 685,953,143.37/40,793.52
  6. Step 6: Final answer
    x = 16,815.25

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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.