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Finding the Fourth Proportional to 28,753.29, 43,108.04 and 9,020.48

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Solution

The fourth proportional to 28,753.29, 43,108.04 and 9,020.48 is: 13,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.29 : 43,108.04 = 9,020.48 : x
  2. Step 2: Convert to fraction form
    28,753.29/43,108.04 = 9,020.48/x
  3. Step 3: Cross multiply
    28,753.29x = 43,108.04 × 9,020.48
  4. Step 4: Simplify right side
    28,753.29x = 388,854,952.02
  5. Step 5: Solve for x
    x = 388,854,952.02/28,753.29
  6. Step 6: Final answer
    x = 13,523.84

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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.