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Finding the Fourth Proportional to 1,984.88, 2,740.02 and 1,736.48

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Solution

The fourth proportional to 1,984.88, 2,740.02 and 1,736.48 is: 2,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.88 : 2,740.02 = 1,736.48 : x
  2. Step 2: Convert to fraction form
    1,984.88/2,740.02 = 1,736.48/x
  3. Step 3: Cross multiply
    1,984.88x = 2,740.02 × 1,736.48
  4. Step 4: Simplify right side
    1,984.88x = 4,757,989.93
  5. Step 5: Solve for x
    x = 4,757,989.93/1,984.88
  6. Step 6: Final answer
    x = 2,397.12

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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.