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Finding the Fourth Proportional to 61,918.63, 85,448.04 and 35,066.37

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Solution

The fourth proportional to 61,918.63, 85,448.04 and 35,066.37 is: 48,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,918.63 : 85,448.04 = 35,066.37 : x
  2. Step 2: Convert to fraction form
    61,918.63/85,448.04 = 35,066.37/x
  3. Step 3: Cross multiply
    61,918.63x = 85,448.04 × 35,066.37
  4. Step 4: Simplify right side
    61,918.63x = 2,996,352,586.41
  5. Step 5: Solve for x
    x = 2,996,352,586.41/61,918.63
  6. Step 6: Final answer
    x = 48,391.78

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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.