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Finding the Fourth Proportional to 3,607.13, 4,977.83 and 1,951.13

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Solution

The fourth proportional to 3,607.13, 4,977.83 and 1,951.13 is: 2,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.13 : 4,977.83 = 1,951.13 : x
  2. Step 2: Convert to fraction form
    3,607.13/4,977.83 = 1,951.13/x
  3. Step 3: Cross multiply
    3,607.13x = 4,977.83 × 1,951.13
  4. Step 4: Simplify right side
    3,607.13x = 9,712,373.44
  5. Step 5: Solve for x
    x = 9,712,373.44/3,607.13
  6. Step 6: Final answer
    x = 2,692.55

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1.5x scale

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.