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Finding the Fourth Proportional to 61,380.03, 84,691.73 and 35,881.47

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Solution

The fourth proportional to 61,380.03, 84,691.73 and 35,881.47 is: 49,508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,380.03 : 84,691.73 = 35,881.47 : x
  2. Step 2: Convert to fraction form
    61,380.03/84,691.73 = 35,881.47/x
  3. Step 3: Cross multiply
    61,380.03x = 84,691.73 × 35,881.47
  4. Step 4: Simplify right side
    61,380.03x = 3,038,863,589.84
  5. Step 5: Solve for x
    x = 3,038,863,589.84/61,380.03
  6. Step 6: Final answer
    x = 49,508.99

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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.