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Finding the Fourth Proportional to 2,461.80, 3,692.70 and 2,355.15

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Solution

The fourth proportional to 2,461.80, 3,692.70 and 2,355.15 is: 3,532.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,461.80 : 3,692.70 = 2,355.15 : x
  2. Step 2: Convert to fraction form
    2,461.80/3,692.70 = 2,355.15/x
  3. Step 3: Cross multiply
    2,461.80x = 3,692.70 × 2,355.15
  4. Step 4: Simplify right side
    2,461.80x = 8,696,862.41
  5. Step 5: Solve for x
    x = 8,696,862.41/2,461.80
  6. Step 6: Final answer
    x = 3,532.73

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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.