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Finding the Fourth Proportional to 1,461.04, 2,016.68 and 995.56

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Solution

The fourth proportional to 1,461.04, 2,016.68 and 995.56 is: 1,374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.04 : 2,016.68 = 995.56 : x
  2. Step 2: Convert to fraction form
    1,461.04/2,016.68 = 995.56/x
  3. Step 3: Cross multiply
    1,461.04x = 2,016.68 × 995.56
  4. Step 4: Simplify right side
    1,461.04x = 2,007,725.94
  5. Step 5: Solve for x
    x = 2,007,725.94/1,461.04
  6. Step 6: Final answer
    x = 1,374.18

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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.