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Finding the Fourth Proportional to 21,433, 32,149.92 and 5,851.03

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Solution

The fourth proportional to 21,433, 32,149.92 and 5,851.03 is: 8,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433 : 32,149.92 = 5,851.03 : x
  2. Step 2: Convert to fraction form
    21,433/32,149.92 = 5,851.03/x
  3. Step 3: Cross multiply
    21,433x = 32,149.92 × 5,851.03
  4. Step 4: Simplify right side
    21,433x = 188,110,146.42
  5. Step 5: Solve for x
    x = 188,110,146.42/21,433
  6. Step 6: Final answer
    x = 8,776.66

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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.