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Finding the Fourth Proportional to 62,968.78, 86,897.55 and 34,674.58

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Solution

The fourth proportional to 62,968.78, 86,897.55 and 34,674.58 is: 47,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,968.78 : 86,897.55 = 34,674.58 : x
  2. Step 2: Convert to fraction form
    62,968.78/86,897.55 = 34,674.58/x
  3. Step 3: Cross multiply
    62,968.78x = 86,897.55 × 34,674.58
  4. Step 4: Simplify right side
    62,968.78x = 3,013,136,049.28
  5. Step 5: Solve for x
    x = 3,013,136,049.28/62,968.78
  6. Step 6: Final answer
    x = 47,851.27

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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.