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Finding the Fourth Proportional to 65,933.70, 98,830.83 and 21,548.55

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Solution

The fourth proportional to 65,933.70, 98,830.83 and 21,548.55 is: 32,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,933.70 : 98,830.83 = 21,548.55 : x
  2. Step 2: Convert to fraction form
    65,933.70/98,830.83 = 21,548.55/x
  3. Step 3: Cross multiply
    65,933.70x = 98,830.83 × 21,548.55
  4. Step 4: Simplify right side
    65,933.70x = 2,129,661,081.80
  5. Step 5: Solve for x
    x = 2,129,661,081.80/65,933.70
  6. Step 6: Final answer
    x = 32,300.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.