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Finding the Fourth Proportional to 2,980.69, 4,113.38 and 1,654.52

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Solution

The fourth proportional to 2,980.69, 4,113.38 and 1,654.52 is: 2,283.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.69 : 4,113.38 = 1,654.52 : x
  2. Step 2: Convert to fraction form
    2,980.69/4,113.38 = 1,654.52/x
  3. Step 3: Cross multiply
    2,980.69x = 4,113.38 × 1,654.52
  4. Step 4: Simplify right side
    2,980.69x = 6,805,669.48
  5. Step 5: Solve for x
    x = 6,805,669.48/2,980.69
  6. Step 6: Final answer
    x = 2,283.25

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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.