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Finding the Fourth Proportional to 62,655.18, 86,464.11 and 34,361.47

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Solution

The fourth proportional to 62,655.18, 86,464.11 and 34,361.47 is: 47,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,655.18 : 86,464.11 = 34,361.47 : x
  2. Step 2: Convert to fraction form
    62,655.18/86,464.11 = 34,361.47/x
  3. Step 3: Cross multiply
    62,655.18x = 86,464.11 × 34,361.47
  4. Step 4: Simplify right side
    62,655.18x = 2,971,033,921.84
  5. Step 5: Solve for x
    x = 2,971,033,921.84/62,655.18
  6. Step 6: Final answer
    x = 47,418.81

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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.