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Finding the Fourth Proportional to 48,689.64, 73,028.99 and 13,632.03

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Solution

The fourth proportional to 48,689.64, 73,028.99 and 13,632.03 is: 20,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,689.64 : 73,028.99 = 13,632.03 : x
  2. Step 2: Convert to fraction form
    48,689.64/73,028.99 = 13,632.03/x
  3. Step 3: Cross multiply
    48,689.64x = 73,028.99 × 13,632.03
  4. Step 4: Simplify right side
    48,689.64x = 995,533,416.63
  5. Step 5: Solve for x
    x = 995,533,416.63/48,689.64
  6. Step 6: Final answer
    x = 20,446.51

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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.