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Finding the Fourth Proportional to 35,170.86, 48,536.40 and 21,741.78

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Solution

The fourth proportional to 35,170.86, 48,536.40 and 21,741.78 is: 30,004.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,170.86 : 48,536.40 = 21,741.78 : x
  2. Step 2: Convert to fraction form
    35,170.86/48,536.40 = 21,741.78/x
  3. Step 3: Cross multiply
    35,170.86x = 48,536.40 × 21,741.78
  4. Step 4: Simplify right side
    35,170.86x = 1,055,267,730.79
  5. Step 5: Solve for x
    x = 1,055,267,730.79/35,170.86
  6. Step 6: Final answer
    x = 30,004.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.