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Finding the Fourth Proportional to 35,680.80, 53,418.80 and 34,656.80

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Solution

The fourth proportional to 35,680.80, 53,418.80 and 34,656.80 is: 51,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,680.80 : 53,418.80 = 34,656.80 : x
  2. Step 2: Convert to fraction form
    35,680.80/53,418.80 = 34,656.80/x
  3. Step 3: Cross multiply
    35,680.80x = 53,418.80 × 34,656.80
  4. Step 4: Simplify right side
    35,680.80x = 1,851,324,667.84
  5. Step 5: Solve for x
    x = 1,851,324,667.84/35,680.80
  6. Step 6: Final answer
    x = 51,885.74

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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.