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Finding the Fourth Proportional to 35,481.60, 53,265.60 and 17,942.40

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Solution

The fourth proportional to 35,481.60, 53,265.60 and 17,942.40 is: 26,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,481.60 : 53,265.60 = 17,942.40 : x
  2. Step 2: Convert to fraction form
    35,481.60/53,265.60 = 17,942.40/x
  3. Step 3: Cross multiply
    35,481.60x = 53,265.60 × 17,942.40
  4. Step 4: Simplify right side
    35,481.60x = 955,712,701.44
  5. Step 5: Solve for x
    x = 955,712,701.44/35,481.60
  6. Step 6: Final answer
    x = 26,935.45

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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.