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Finding the Fourth Proportional to 35,481.60, 53,203.20 and 14,707.20

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Solution

The fourth proportional to 35,481.60, 53,203.20 and 14,707.20 is: 22,052.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,481.60 : 53,203.20 = 14,707.20 : x
  2. Step 2: Convert to fraction form
    35,481.60/53,203.20 = 14,707.20/x
  3. Step 3: Cross multiply
    35,481.60x = 53,203.20 × 14,707.20
  4. Step 4: Simplify right side
    35,481.60x = 782,470,103.04
  5. Step 5: Solve for x
    x = 782,470,103.04/35,481.60
  6. Step 6: Final answer
    x = 22,052.84

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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.