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Finding the Fourth Proportional to 34,735.62, 47,935.09 and 18,820.50

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Solution

The fourth proportional to 34,735.62, 47,935.09 and 18,820.50 is: 25,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,735.62 : 47,935.09 = 18,820.50 : x
  2. Step 2: Convert to fraction form
    34,735.62/47,935.09 = 18,820.50/x
  3. Step 3: Cross multiply
    34,735.62x = 47,935.09 × 18,820.50
  4. Step 4: Simplify right side
    34,735.62x = 902,162,361.35
  5. Step 5: Solve for x
    x = 902,162,361.35/34,735.62
  6. Step 6: Final answer
    x = 25,972.25

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1.5x scale

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.