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Finding the Fourth Proportional to 32,563.12, 48,844.80 and 7,939.12

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Solution

The fourth proportional to 32,563.12, 48,844.80 and 7,939.12 is: 11,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,563.12 : 48,844.80 = 7,939.12 : x
  2. Step 2: Convert to fraction form
    32,563.12/48,844.80 = 7,939.12/x
  3. Step 3: Cross multiply
    32,563.12x = 48,844.80 × 7,939.12
  4. Step 4: Simplify right side
    32,563.12x = 387,784,728.58
  5. Step 5: Solve for x
    x = 387,784,728.58/32,563.12
  6. Step 6: Final answer
    x = 11,908.71

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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.