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Finding the Fourth Proportional to 61,398.78, 91,942.65 and 37,954.14

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Solution

The fourth proportional to 61,398.78, 91,942.65 and 37,954.14 is: 56,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.78 : 91,942.65 = 37,954.14 : x
  2. Step 2: Convert to fraction form
    61,398.78/91,942.65 = 37,954.14/x
  3. Step 3: Cross multiply
    61,398.78x = 91,942.65 × 37,954.14
  4. Step 4: Simplify right side
    61,398.78x = 3,489,604,210.07
  5. Step 5: Solve for x
    x = 3,489,604,210.07/61,398.78
  6. Step 6: Final answer
    x = 56,835.07

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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.