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Finding the Fourth Proportional to 62,942.90, 86,841.60 and 35,714.48

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Solution

The fourth proportional to 62,942.90, 86,841.60 and 35,714.48 is: 49,274.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,942.90 : 86,841.60 = 35,714.48 : x
  2. Step 2: Convert to fraction form
    62,942.90/86,841.60 = 35,714.48/x
  3. Step 3: Cross multiply
    62,942.90x = 86,841.60 × 35,714.48
  4. Step 4: Simplify right side
    62,942.90x = 3,101,502,152.16
  5. Step 5: Solve for x
    x = 3,101,502,152.16/62,942.90
  6. Step 6: Final answer
    x = 49,274.86

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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.