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Finding the Fourth Proportional to 35,665.87, 53,508.03 and 13,479.44

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Solution

The fourth proportional to 35,665.87, 53,508.03 and 13,479.44 is: 20,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,665.87 : 53,508.03 = 13,479.44 : x
  2. Step 2: Convert to fraction form
    35,665.87/53,508.03 = 13,479.44/x
  3. Step 3: Cross multiply
    35,665.87x = 53,508.03 × 13,479.44
  4. Step 4: Simplify right side
    35,665.87x = 721,258,169.17
  5. Step 5: Solve for x
    x = 721,258,169.17/35,665.87
  6. Step 6: Final answer
    x = 20,222.64

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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.