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Finding the Fourth Proportional to 57,703.64, 86,552.22 and 20,265.44

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Solution

The fourth proportional to 57,703.64, 86,552.22 and 20,265.44 is: 30,397.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,703.64 : 86,552.22 = 20,265.44 : x
  2. Step 2: Convert to fraction form
    57,703.64/86,552.22 = 20,265.44/x
  3. Step 3: Cross multiply
    57,703.64x = 86,552.22 × 20,265.44
  4. Step 4: Simplify right side
    57,703.64x = 1,754,018,821.28
  5. Step 5: Solve for x
    x = 1,754,018,821.28/57,703.64
  6. Step 6: Final answer
    x = 30,397.02

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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.