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Finding the Fourth Proportional to 62,937.60, 94,383.91 and 20,809.91

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Solution

The fourth proportional to 62,937.60, 94,383.91 and 20,809.91 is: 31,207.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,937.60 : 94,383.91 = 20,809.91 : x
  2. Step 2: Convert to fraction form
    62,937.60/94,383.91 = 20,809.91/x
  3. Step 3: Cross multiply
    62,937.60x = 94,383.91 × 20,809.91
  4. Step 4: Simplify right side
    62,937.60x = 1,964,120,200.63
  5. Step 5: Solve for x
    x = 1,964,120,200.63/62,937.60
  6. Step 6: Final answer
    x = 31,207.42

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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.