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Finding the Fourth Proportional to 62,984.52, 86,915.30 and 34,684.84

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Solution

The fourth proportional to 62,984.52, 86,915.30 and 34,684.84 is: 47,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,984.52 : 86,915.30 = 34,684.84 : x
  2. Step 2: Convert to fraction form
    62,984.52/86,915.30 = 34,684.84/x
  3. Step 3: Cross multiply
    62,984.52x = 86,915.30 × 34,684.84
  4. Step 4: Simplify right side
    62,984.52x = 3,014,643,274.05
  5. Step 5: Solve for x
    x = 3,014,643,274.05/62,984.52
  6. Step 6: Final answer
    x = 47,863.24

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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.