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Finding the Fourth Proportional to 32,250.56, 48,378.90 and 12,530.64

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Solution

The fourth proportional to 32,250.56, 48,378.90 and 12,530.64 is: 18,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,250.56 : 48,378.90 = 12,530.64 : x
  2. Step 2: Convert to fraction form
    32,250.56/48,378.90 = 12,530.64/x
  3. Step 3: Cross multiply
    32,250.56x = 48,378.90 × 12,530.64
  4. Step 4: Simplify right side
    32,250.56x = 606,218,579.50
  5. Step 5: Solve for x
    x = 606,218,579.50/32,250.56
  6. Step 6: Final answer
    x = 18,797.15

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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.