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Finding the Fourth Proportional to 62,772.88, 86,627.16 and 34,479.16

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Solution

The fourth proportional to 62,772.88, 86,627.16 and 34,479.16 is: 47,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,772.88 : 86,627.16 = 34,479.16 : x
  2. Step 2: Convert to fraction form
    62,772.88/86,627.16 = 34,479.16/x
  3. Step 3: Cross multiply
    62,772.88x = 86,627.16 × 34,479.16
  4. Step 4: Simplify right side
    62,772.88x = 2,986,831,709.99
  5. Step 5: Solve for x
    x = 2,986,831,709.99/62,772.88
  6. Step 6: Final answer
    x = 47,581.56

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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.