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Finding the Fourth Proportional to 65,435.27, 98,152.90 and 21,062.03

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Solution

The fourth proportional to 65,435.27, 98,152.90 and 21,062.03 is: 31,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,435.27 : 98,152.90 = 21,062.03 : x
  2. Step 2: Convert to fraction form
    65,435.27/98,152.90 = 21,062.03/x
  3. Step 3: Cross multiply
    65,435.27x = 98,152.90 × 21,062.03
  4. Step 4: Simplify right side
    65,435.27x = 2,067,298,780.97
  5. Step 5: Solve for x
    x = 2,067,298,780.97/65,435.27
  6. Step 6: Final answer
    x = 31,593.04

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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.