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Finding the Fourth Proportional to 61,396.88, 84,727.10 and 34,539.53

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Solution

The fourth proportional to 61,396.88, 84,727.10 and 34,539.53 is: 47,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,396.88 : 84,727.10 = 34,539.53 : x
  2. Step 2: Convert to fraction form
    61,396.88/84,727.10 = 34,539.53/x
  3. Step 3: Cross multiply
    61,396.88x = 84,727.10 × 34,539.53
  4. Step 4: Simplify right side
    61,396.88x = 2,926,433,615.93
  5. Step 5: Solve for x
    x = 2,926,433,615.93/61,396.88
  6. Step 6: Final answer
    x = 47,664.21

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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.