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Finding the Fourth Proportional to 35,314.59, 48,735.63 and 20,207.28

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Solution

The fourth proportional to 35,314.59, 48,735.63 and 20,207.28 is: 27,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,314.59 : 48,735.63 = 20,207.28 : x
  2. Step 2: Convert to fraction form
    35,314.59/48,735.63 = 20,207.28/x
  3. Step 3: Cross multiply
    35,314.59x = 48,735.63 × 20,207.28
  4. Step 4: Simplify right side
    35,314.59x = 984,814,521.39
  5. Step 5: Solve for x
    x = 984,814,521.39/35,314.59
  6. Step 6: Final answer
    x = 27,886.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.