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Finding the Fourth Proportional to 2,371.06, 3,554.50 and 983.53

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Solution

The fourth proportional to 2,371.06, 3,554.50 and 983.53 is: 1,474.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.06 : 3,554.50 = 983.53 : x
  2. Step 2: Convert to fraction form
    2,371.06/3,554.50 = 983.53/x
  3. Step 3: Cross multiply
    2,371.06x = 3,554.50 × 983.53
  4. Step 4: Simplify right side
    2,371.06x = 3,495,957.39
  5. Step 5: Solve for x
    x = 3,495,957.39/2,371.06
  6. Step 6: Final answer
    x = 1,474.43

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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.